fix duplicate route order

[nazoking]

Describe the PR

#968 fixes the priority of duplicate routes in alphabetical order in the file path.
But that is not the priority we need in the field.

1. If more than one is specified in the -dir option, give priority to the directory at the beginning of the option.
2. Prioritize the source of the dependency over the library of the dependency.

Our project consists of creating a new site by referring to the source of common parts.

In many cases, we believe that this priority specification will work as ideal.

[codecov]

Codecov Report

Merging #994 (5c5431c) into master (523e046) will increase coverage by 0.01%.
The diff coverage is 88.23%.

@@            Coverage Diff             @@
##           master     #994      +/-   ##
==========================================
+ Coverage   92.57%   92.58%   +0.01%     
==========================================
  Files           8        8              
  Lines        1925     1928       +3     
==========================================
+ Hits         1782     1785       +3     
  Misses         80       80              
  Partials       63       63              

Impacted Files	Coverage Δ
types.go	100.00% <ø> (ø)
parser.go	92.56% <84.61%> (+<0.01%)	⬆️
packages.go	77.85% <100.00%> (+0.30%)	⬆️

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