Added more unit tests. Added 'make cov'. #605

	name: Renode Automated multi memory configurations

	on:
	push:
	branches: [ 'master', 'main', 'release/**' ]
	pull_request:
	branches: [ '*' ]

	jobs:
	renode_automated_smallstack:
	runs-on: ubuntu-20.04

	steps:
	- uses: actions/checkout@v2
	with:
	submodules: true

	- name: Select config
	run: \|
	cp config/examples/nrf52840.config .config && make include/target.h

	##### SMALL STACK tests

	# SIGN=NONE TEST
	- name: Renode Tests SIGN=NONE WOLFBOOT_SMALL_STACK=1
	run: ./tools/renode/docker-test.sh "SIGN=NONE WOLFBOOT_SMALL_STACK=1"


	# ECC256 TEST
	- name: Renode Tests ECC256
	run: ./tools/renode/docker-test.sh "SIGN=ECC256 WOLFBOOT_SMALL_STACK=1"


	# ECC384 TEST
	- name: Renode Tests ECC384
	run: ./tools/renode/docker-test.sh "SIGN=ECC384 WOLFBOOT_SMALL_STACK=1"


	# ED25519 TEST
	- name: Renode Tests ED25519
	run: ./tools/renode/docker-test.sh "SIGN=ED25519 WOLFBOOT_SMALL_STACK=1"


	# ED448 TEST
	- name: Renode Tests ED448
	run: ./tools/renode/docker-test.sh "SIGN=ED448 WOLFBOOT_SMALL_STACK=1"


	# RSA2048 TEST
	- name: Renode Tests RSA2048
	run: ./tools/renode/docker-test.sh "SIGN=RSA2048 WOLFBOOT_SMALL_STACK=1"


	# RSA3072 TEST
	- name: Renode Tests RSA3072
	run: ./tools/renode/docker-test.sh "SIGN=RSA3072 WOLFBOOT_SMALL_STACK=1"


	# RSA4096 TEST
	- name: Renode Tests RSA4096
	run: ./tools/renode/docker-test.sh "SIGN=RSA4096 WOLFBOOT_SMALL_STACK=1"


	- name: Upload Output Dir
	uses: actions/upload-artifact@v2
	with:
	name: Renode Test Results
	path: test_results/

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