Add config for main loop interval and socket polling interval

[roxblnfk]

What was changed

Added envs:
TRAP_TCP_POLLING_INTERVAL to configure sockets polling interval
TRAP_MAIN_LOOP_INTERVAL to configure main loop interval

Why?

To empirically determine the best default values.

Checklist

• Part of High cpu usage #139
• Tested
  • Tested manually
  • Unit tests added
• Documentation

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 12 lines in your changes missing coverage. Please review.

Project coverage is 22.56%. Comparing base (827614c) to head (b75e890).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
src/Application.php	0.00%	11 Missing ⚠️
src/Command/Run.php	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #141      +/-   ##
============================================
- Coverage     22.59%   22.56%   -0.04%     
  Complexity     1333     1333              
============================================
  Files           157      157              
  Lines          4182     4188       +6     
============================================
  Hits            945      945              
- Misses         3237     3243       +6     

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