Advanced message parsing

[leon0399]

This PR adds a few different new features to the parsing algorithm:

Left-padded values

Sometimes, you want to take a glance at values without opening Serial Plotter. Without left padding this makes values jump horizontally, making it hard to follow changes. This closes #20

RawThumbCurl: 23, RawIndexCurl: 0, RawMiddleCurl: 321, RawRingCurl: 1245, RawPinkyCurl: 0, RawJoyX: 323, RawJoyY: 1973
RawThumbCurl: 0, RawIndexCurl: 0, RawMiddleCurl: 21, RawRingCurl: 54, RawPinkyCurl: 8, RawJoyX: 23, RawJoyY: 173
RawThumbCurl: 1973, RawIndexCurl: 231, RawMiddleCurl: 221, RawRingCurl: 2304, RawPinkyCurl: 2568, RawJoyX: 2003, RawJoyY: 173

With these changes, you can now left-pad values (Serial.printf("Label_1: %4u", value))

RawThumbCurl:   23, RawIndexCurl:    0, RawMiddleCurl:  321, RawRingCurl: 1245, RawPinkyCurl:    0, RawJoyX:  323, RawJoyY: 1973
RawThumbCurl:    0, RawIndexCurl:    0, RawMiddleCurl:   21, RawRingCurl:   54, RawPinkyCurl:    8, RawJoyX:   23, RawJoyY:  173
RawThumbCurl: 1973, RawIndexCurl:  231, RawMiddleCurl:  221, RawRingCurl: 2304, RawPinkyCurl: 2568, RawJoyX: 2003, RawJoyY: 173

Separate label and value with = (equals sign)

Given I am already refactoring parsing, I decided also to close #22, because it happened to me also, that I used = by mistake

[CLAassistant]

All committers have signed the CLA.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 94.44444% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 86.88%. Comparing base (22c6952) to head (aff3e74).

Files	Patch %	Lines
src/msgAggregatorWorker.ts	94.44%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #34      +/-   ##
==========================================
- Coverage   87.71%   86.88%   -0.84%     
==========================================
  Files           1        1              
  Lines          57       61       +4     
  Branches       12       10       -2     
==========================================
+ Hits           50       53       +3     
  Misses          3        3              
- Partials        4        5       +1     

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