Broadly support user-defined module aliases

[72636c]

• build: Start on experimental esbuild support #681 via esbuild
• lint: read tsconfig.json to dynamically render ESLint import order pathGroups?
• node, start: Register tsconfig-paths for development #678 via tsconfig-paths
• test: Support tsconfig.json paths in Jest #698 via moduleNameMapper

• skuba/jest/moduleNameMapper.js

  Lines 11 to 16 in 652ced4

  	/**
  	* Set a default `src` module alias for backward compatibility.
  	*
  	* TODO: drop this default in skuba v4.
  	*/
  	const DEFAULT_PATHS = { src: ['src'], 'src/*': ['src/*'] };