Refactor make_line

[faridyagubbayli]

Closes #263

Splits the long make_line function into two new functions. The first function handles drawing straight lines while the second draws lines with angle.

• Add "edge case" tests

[codecov]

Codecov Report

Attention: Patch coverage is 64.22764% with 44 lines in your changes missing coverage. Please review.

Project coverage is 71.80%. Comparing base (2e0bd5c) to head (8b5eee1).

❗ Current head 8b5eee1 differs from pull request most recent head 34d5764

Please upload reports for the commit 34d5764 to get more accurate results.

Files	Patch %	Lines
kwave/utils/mapgen.py	64.22%	32 Missing and 12 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #374      +/-   ##
==========================================
+ Coverage   71.59%   71.80%   +0.21%     
==========================================
  Files          46       46              
  Lines        6738     6697      -41     
  Branches     1496     1487       -9     
==========================================
- Hits         4824     4809      -15     
+ Misses       1345     1321      -24     
+ Partials      569      567       -2     

Flag	Coverage Δ
3.10	72.01% <64.22%> (+0.21%)	⬆️
3.11	72.01% <64.22%> (+0.21%)	⬆️
3.12	72.01% <64.22%> (+0.21%)	⬆️
3.9	71.78% <64.22%> (+0.21%)	⬆️
macos-latest	71.74% <64.22%> (+0.21%)	⬆️
ubuntu-latest	71.77% <64.22%> (+0.21%)	⬆️
windows-latest	71.79% <64.22%> (+0.21%)	⬆️

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[waltsims]

@copilot add edge cases tests

[Copilot]

@waltsims I've opened a new pull request, #648, to work on those changes. Once the pull request is ready, I'll request review from you.