Update logging configuration to universally accept ints / strs (SYN-2232) (SYN-2049)

[vEpiphyte]

• Synapse logging now accepts integer values as log levels
• Storm log level now defaults to info level
• storm log level now takes string inputs in addition to integers
• Removed --storm-log-level cortex command line argument
• Added documentation for storm query logging and cell logging

[codecov]

Codecov Report

Merging #2262 (0b12dc2) into master (81782c5) will decrease coverage by 0.12%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #2262      +/-   ##
==========================================
- Coverage   97.07%   96.95%   -0.13%     
==========================================
  Files         159      159              
  Lines       32282    32303      +21     
==========================================
- Hits        31339    31318      -21     
- Misses        943      985      +42     

Flag	Coverage Δ
linux	96.95% <100.00%> (+<0.01%)	⬆️
linux_replay	?

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Impacted Files	Coverage Δ
synapse/common.py	97.72% <100.00%> (+0.09%)	⬆️
synapse/cortex.py	96.17% <100.00%> (-0.70%)	⬇️
synapse/lib/cell.py	98.15% <100.00%> (ø)
synapse/lib/const.py	100.00% <100.00%> (ø)
synapse/tests/utils.py	93.88% <100.00%> (-2.08%)	⬇️
synapse/lib/hiveauth.py	96.19% <0.00%> (-0.73%)	⬇️
synapse/lib/view.py	93.91% <0.00%> (-0.71%)	⬇️
synapse/lib/trigger.py	94.11% <0.00%> (-0.43%)	⬇️

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