Fix: allow arbitrary template structure

[SSE4]

trying to make template according to the https://docs.conan.io/en/latest/extending/template_system/command_new.html#template-command-new
getting the error: ERROR: Template is missing a recipe file: C:\Users\SSE4\.conan\templates\command\new\cci
for the command: conan new luple/1.2 --template=cci

the structure is:

C:\Users\SSE4\.conan\templates\command                                                                                                                                                                                                                                                                                                                   C:\Users\SSE4\.conan\templates\command\new                                                                                                                                                                                                                                                                                                               C:\Users\SSE4\.conan\templates\command\new\cci                                                                                                                                                                                                                                                                                                           C:\Users\SSE4\.conan\templates\command\new\cci\{{name}}                                                                                                                                                                                                                                                                                                  C:\Users\SSE4\.conan\templates\command\new\cci\{{name}}\all                                                                                                                                                                                                                                                                                              C:\Users\SSE4\.conan\templates\command\new\cci\{{name}}\config.yml                                                                                                                                                                                                                                                                                       C:\Users\SSE4\.conan\templates\command\new\cci\{{name}}\all\conandata.yml                                                                                                                                                                                                                                                                                C:\Users\SSE4\.conan\templates\command\new\cci\{{name}}\all\conanfile.py                                                                                                                                                                                                                                                                                 C:\Users\SSE4\.conan\templates\command\new\cci\{{name}}\all\test_package                                                                                                                                                                                                                                                                                 C:\Users\SSE4\.conan\templates\command\new\cci\{{name}}\all\test_package\CMakeLists.txt                                                                                                                                                                                                                                                                  C:\Users\SSE4\.conan\templates\command\new\cci\{{name}}\all\test_package\conanfile.py                                                                                                                                                                                                                                                                    C:\Users\SSE4\.conan\templates\command\new\cci\{{name}}\all\test_package\test_package.cpp  

according to the doc it should work:

Conan will process all the files found in that folder using Jinja2 engine and the paths to those files too. Thus the following template directory (which match the conventions for conan-center-index recipes):
conan-center/{{name}}/config.yml
            /{{name}}/all/conanfile.py
            /{{name}}/all/conandata.yml
            /{{name}}/all/test_package/conanfile.py
            /{{name}}/all/test_package/CMakeLists.txt
            /{{name}}/all/test_package/main.cpp
will be translated to:
conan-center/mypackage/config.yml
            /mypackage/all/conanfile.py
            /mypackage/all/conandata.yml
            /mypackage/all/test_package/conanfile.py
            /mypackage/all/test_package/CMakeLists.txt
            /mypackage/all/test_package/main.cpp

Changelog: Fix: Allow arbitrary template structure.
Docs: omit

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