chore: Add tsconfig.json, update ci.yml #175

	name: Solidity

	on: [push, pull_request]

	jobs:
	check-copyright:
	name: Copyright
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- name: License header
	run: .scripts/check-copyright-notice.sh
	- name: Authors
	run: .scripts/check-notice-authors.sh origin/main

	build-and-test:
	name: Build & Test
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	with:
	submodules: recursive

	- name: Install npm
	uses: actions/setup-node@v2
	with:
	node-version: '16'

	- name: Install dependencies
	run: yarn

	- name: Lint
	run: npx solhint 'contracts/*/.sol'

	- name: Install Hardhat
	run: yarn add hardhat

	- name: Compile
	run: npx hardhat compile

	- name: Static analysis
	run: \|
	pip3 install slither-analyzer==0.8.3
	slither --exclude solc-version,timestamp,boolean-equality,unimplemented-functions,locked-ether --filter-paths vendor/ .
	# Alternatively, one can use Docker:
	# WORKDIR=/share docker run --rm -v $(pwd):$WORKDIR -w $WORKDIR --entrypoint slither trailofbits/eth-security-toolbox [insert slither parameters here]

	- name: Test
	run: npx hardhat test

Provide feedback