DEV: Add .coveragerc

Code blocks that should not be considered for test coverage can be
specified here. Also adjusted the PR template to reflect how this can be
invoked.

Author: mferrera

.coveragerc

@@ -0,0 +1,4 @@
+[report]
+exclude_also =
+    ; Ignore type checking blocks
+    if TYPE_CHECKING:

.github/pull_request_template.md

@@ -6,7 +6,7 @@ changes made to the code, and what the PR is solving."
 ## Checklist
 
 - [ ] Tests added (if not, comment why)
-- [ ] Test coverage equal or up from main (run pytest with `--cov=<packagename> --cov-report term-missing`)
+- [ ] Test coverage equal or up from main (run pytest with `--cov=src/ --cov-report term-missing`)
 - [ ] If not squash merging, every commit passes tests
 - [ ] Appropriate [commit prefix](https://upgraded-funicular-eywe4gy.pages.github.io/developing/#commit-prefixes) and precise commit message used
 - [ ] All debug prints and unnecessary comments removed