Parse assignment operators

[kevinbarabash]

No description provided.

[codecov]

Codecov Report

Merging #588 (f4a3587) into main (f7389d6) will increase coverage by 0.08%.
The diff coverage is 97.89%.

@@            Coverage Diff             @@
##             main     #588      +/-   ##
==========================================
+ Coverage   91.27%   91.36%   +0.08%     
==========================================
  Files         110      110              
  Lines       20943    21033      +90     
==========================================
+ Hits        19116    19216     +100     
+ Misses       1827     1817      -10     

Impacted Files	Coverage Δ
crates/escalier_parser/src/token.rs	100.00% <ø> (ø)
crates/escalier_parser/src/expr_parser.rs	98.31% <96.72%> (+<0.01%)	⬆️
crates/escalier_parser/src/expr.rs	100.00% <100.00%> (ø)
crates/escalier_parser/src/lexer.rs	98.67% <100.00%> (+0.08%)	⬆️

... and 9 files with indirect coverage changes