Allow multiple puncts in a row in NodeName

[PizzasBear]

Removed NodeNameFragment::peek_any, since this function should always return true because it can be NodeNameFragment::Empty. This allows NodeNameFragment::Empty to actually separate puncts which allows multiple puncts in a row to be parsed as NodeName::Punctuated

[vldm]

@PizzasBear Hi, Thanks for contribution, could you please add a test for that case?

[PizzasBear]

I've added the test

[codecov-commenter]

Codecov Report

Merging #42 (fd3630c) into main (12753af) will decrease coverage by 0.07%.
The diff coverage is 100.00%.

❗ Current head fd3630c differs from pull request most recent head ba78bbb. Consider uploading reports for the commit ba78bbb to get more accurate results

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@@            Coverage Diff             @@
##             main      #42      +/-   ##
==========================================
- Coverage   76.86%   76.80%   -0.07%     
==========================================
  Files          12       12              
  Lines         752      750       -2     
==========================================
- Hits          578      576       -2     
  Misses        174      174              

Files	Coverage Δ
src/node/node_name.rs	75.00% <100.00%> (+0.40%)	⬆️

... and 1 file with indirect coverage changes

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