Api-Derives documentation generator (#6099)

* Initial Readme

* Initial Readme

* expand accounts derive docs

* parse and render derives documentation

* write to docs/derives

* Add code docs

* Lint

* Temporarily simplify derives Readme

* Remove unnecesary export

* Regenerate yarn.lock

* Improve Derives description

yarn.lock

@@ -712,6 +712,7 @@ __metadata:
   dependencies:
     "@polkadot/api": "npm:15.6.2-1-x"
     "@polkadot/api-augment": "npm:15.6.2-1-x"
+    "@polkadot/api-derive": "npm:15.6.2-1-x"
     "@polkadot/rpc-augment": "npm:15.6.2-1-x"
     "@polkadot/rpc-provider": "npm:15.6.2-1-x"
     "@polkadot/types": "npm:15.6.2-1-x"
@@ -723,6 +724,7 @@ __metadata:
     "@polkadot/util-crypto": "npm:^13.4.3"
     "@polkadot/x-ws": "npm:^13.4.3"
     "@types/yargs": "npm:^17.0.33"
+    comment-parser: "npm:^1.4.1"
     handlebars: "npm:^4.7.8"
     tslib: "npm:^2.8.1"
     yargs: "npm:^17.7.2"
@@ -2919,6 +2921,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"comment-parser@npm:^1.4.1":
+  version: 1.4.1
+  resolution: "comment-parser@npm:1.4.1"
+  checksum: 10/16a3260b5e77819ebd9c99b0b65c7d6723b1ff73487bac9ce2d8f016a2847dd689e8663b88e1fad1444bbea89847c42f785708ac86a2c55f614f7095249bbf6b
+  languageName: node
+  linkType: hard
+
 "commondir@npm:^1.0.1":
   version: 1.0.1
   resolution: "commondir@npm:1.0.1"