chore: Move everything into package/ (#1745)

* Move everything into package

* Remove .DS_Store

* Move scripts and eslintrc to package

* Create CODE_OF_CONDUCT.md

* fix some links

* Update all links (I think)

* Update generated docs

* Update notice-yarn-changes.yml

* Update validate-android.yml

* Update validate-cpp.yml

* Delete notice-yarn-changes.yml

* Update validate-cpp.yml

* Update validate-cpp.yml

* Update validate-js.yml

* Update validate-cpp.yml

* Update validate-cpp.yml

* wrong c++ style

* Revert "wrong c++ style"

This reverts commit 55a3575589c6f13f8b05134d83384f55e0601ab2.

.github/workflows/build-ios.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: macOS-latest
     defaults:
       run:
-        working-directory: example/ios
+        working-directory: package/example/ios
     steps:
       - uses: actions/checkout@v2
 
@@ -84,7 +84,7 @@ jobs:
     runs-on: macOS-latest
     defaults:
       run:
-        working-directory: example/ios
+        working-directory: package/example/ios
     steps:
       - uses: actions/checkout@v2