Remove Makefile from all intree extensions (#1312)

* Remove Makefile from all intree extensions

- Makefiles are not really common (rightly so) in JS projects and script
  entries in the package.json are good enough and what they're there
  for.

- Move to using yarn for installing dependencies and running scripts as
  that is what we mostly use for the rest of the project.

- Move from using make syntax to a dedicated script for building and
  testing extensions.

- add jest as extension devDep, go back to using makefile foreach syntax

- add correct exit code

- add yarn check call to install-deps

- add yarn invokation to find deps

Signed-off-by: Sebastian Malton <sebastian@malton.name>

package.json

@@ -18,11 +18,11 @@
     "dev:renderer": "yarn webpack-dev-server --config webpack.renderer.ts",
     "dev:extension-types": "yarn compile:extension-types --watch",
     "compile": "env NODE_ENV=production concurrently yarn:compile:*",
-    "compile:main": "webpack --config webpack.main.ts",
-    "compile:renderer": "webpack --config webpack.renderer.ts",
-    "compile:i18n": "lingui compile",
-    "compile:extension-types": "rollup --config src/extensions/rollup.config.js",
-    "npm:fix-package-version": "ts-node build/set_npm_version.ts",
+    "compile:main": "yarn webpack --config webpack.main.ts",
+    "compile:renderer": "yarn webpack --config webpack.renderer.ts",
+    "compile:i18n": "yarn lingui compile",
+    "compile:extension-types": "yarn rollup --config src/extensions/rollup.config.js",
+    "npm:fix-package-version": "yarn ts-node build/set_npm_version.ts",
     "build:linux": "yarn compile && electron-builder --linux --dir -c.productName=Lens",
     "build:mac": "yarn compile && electron-builder --mac --dir -c.productName=Lens",
     "build:win": "yarn compile && electron-builder --win --dir -c.productName=Lens",
@@ -32,12 +32,12 @@
     "dist:win": "yarn compile && electron-builder --publish onTag --x64 --ia32",
     "dist:dir": "yarn dist --dir -c.compression=store -c.mac.identity=null",
     "postinstall": "patch-package",
-    "i18n:extract": "lingui extract",
+    "i18n:extract": "yarn lingui extract",
     "download-bins": "concurrently yarn:download:*",
     "download:kubectl": "yarn run ts-node build/download_kubectl.ts",
     "download:helm": "yarn run ts-node build/download_helm.ts",
     "build:tray-icons": "yarn run ts-node build/build_tray_icon.ts",
-    "lint": "eslint $@ --ext js,ts,tsx --max-warnings=0  src/",
+    "lint": "yarn eslint $@ --ext js,ts,tsx --max-warnings=0  src/",
     "mkdocs-serve-local": "docker build -t mkdocs-serve-local:latest mkdocs/ && docker run --rm -it -p 8000:8000 -v ${PWD}:/docs mkdocs-serve-local:latest",
     "typedocs-extensions-api": "yarn typedoc --ignoreCompilerErrors --readme docs/extensions/typedoc-readme.md.tpl --name @k8slens/extensions --out docs/extensions/api --mode library --excludePrivate --hideBreadcrumbs --includes src/ src/extensions/extension-api.ts"
   },