Documentation cleanup and some feature improvements (#1155)

* ci: switch to codacy for coverage

* docs: update badges

* decomp: allow overriding config flags via CLI

* cleanup: top level file cleanup

* docs: big README overhaul

Attempt to close #1128 and #1086

* decomp: attempt to detect if `iso_data` is missing or wrongly extracted

* game: switch to `fpng` for screenshots, allow for compression

closes #1035

* game: switch vsync control to a checkbox

* lint: format cpp files

* lint: format json files

* docs/scripts: organize taskfile

.github/workflows/linux-workflow.yaml

@@ -77,10 +77,11 @@ jobs:
             ./test_code_coverage.sh
           fi
 
-      - name: Coveralls
+      - name: Submit Coverage Report to Codacy
         if: ${{ matrix.compiler }} != 'clang'
-        uses: coverallsapp/github-action@master
-        continue-on-error: true # Sometimes Coveralls has intermittent problems, and codecoverage isn't critical to our success
+        uses: codacy/codacy-coverage-reporter-action@v1
+        continue-on-error: true
         with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          path-to-lcov: ./build/goalc-test_coverage.info
+          project-token: ${{ secrets.CODACY_PROJECT_KEY }}
+          # lcov report
+          coverage-reports: ./build/goalc-test_coverage.info