Finish vscode solargraph plugin (#596)

Signed-off-by: Lining Pan <lining_pan@outlook.com>

v3/plugins/castwide/solargraph/0.22.0/meta.yaml

@@ -0,0 +1,22 @@
+apiVersion: v2
+publisher: castwide
+name: solargraph
+version: 0.22.0
+type: VS Code extension
+displayName: Language Support for Ruby
+title: Language Support for Ruby
+description: A Ruby language server featuring code completion, intellisense, and inline documentation
+icon: https://raw.githubusercontent.com/castwide/vscode-solargraph/master/solargraph.png
+category: Language
+repository: https://github.com/castwide/vscode-solargraph
+firstPublicationDate: "2020-08-27"
+spec:
+  containers:
+    - image: "quay.io/eclipse/che-sidecar-ruby:2.6-76f1125"
+      name: vscode-ruby
+      memoryLimit: "1500Mi"
+      volumes:
+      - mountPath: "/home/theia/.solargraph"
+        name: solargraph
+  extensions:
+    - https://open-vsx.org/api/castwide/solargraph/0.22.0/file/castwide.solargraph-0.22.0.vsix

v3/plugins/castwide/solargraph/latest.txt

@@ -0,0 +1 @@
+0.22.0

vscode-extensions.json

@@ -84,6 +84,16 @@
         }
       }
     },
+    {
+      "repository": "https://github.com/castwide/vscode-solargraph",
+      "revision": "212e76d",
+      "sidecar": {
+        "image": "quay.io/eclipse/che-sidecar-ruby:2.6-76f1125",
+        "source": {
+          "repository": "https://github.com/che-dockerfiles/che-sidecar-ruby"
+        }
+      }
+    },
     {
       "repository": "https://github.com/cdr/code-server",
       "revision": "2.1650-vsc1.39.2"