feat: added lambda processing instead of returning a list

[fsniper]

I added lambda processing to the parsing methods.

These methods are beneficial in some cases like:

• When working with large playlists, memory can become a bottleneck.
• You may not want to have the whole list but trying to filter out some elements.

[BjoernPetersen]

Thanks for the contribution! I'll have a closer look within the next few days.

[codecov]

Codecov Report

Attention: Patch coverage is 62.50000% with 12 lines in your changes missing coverage. Please review.

Project coverage is 67.39%. Comparing base (c62a72f) to head (6a1ec88).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...rc/main/kotlin/net/bjoernpetersen/m3u/M3uParser.kt	62.50%	9 Missing and 3 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #215      +/-   ##
============================================
- Coverage     69.73%   67.39%   -2.35%     
- Complexity       47       53       +6     
============================================
  Files             4        4              
  Lines           152      184      +32     
  Branches         28       29       +1     
============================================
+ Hits            106      124      +18     
- Misses           28       41      +13     
- Partials         18       19       +1     

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