Chore: Add issue/pr template and general housekeeping tools and docs (#900)

* Add linting

* Add issue templates and docs

* Add root eslint config and remove tslint

* Autofix lint issues

tsconfig.eslint.json

@@ -0,0 +1,4 @@
+{
+  "extends": "./tsconfig.json",
+  "include": [".eslintrc.js"]
+}