[Improvement] Support --cfg-options for demos

[dreamerlin]

No description provided.

[codecov]

Codecov Report

Merging #911 (fc56f6e) into master (f8b595a) will increase coverage by 0.11%.
The diff coverage is n/a.

❗ Current head fc56f6e differs from pull request most recent head 738d4ce. Consider uploading reports for the commit 738d4ce to get more accurate results

@@            Coverage Diff             @@
##           master     #911      +/-   ##
==========================================
+ Coverage   83.57%   83.69%   +0.11%     
==========================================
  Files         132      132              
  Lines        9966     9983      +17     
  Branches     1718     1722       +4     
==========================================
+ Hits         8329     8355      +26     
+ Misses       1218     1211       -7     
+ Partials      419      417       -2     

Flag	Coverage Δ
unittests	83.69% <ø> (+0.11%)	⬆️

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Impacted Files	Coverage Δ
mmaction/core/evaluation/accuracy.py	92.27% <0.00%> (-0.91%)	⬇️
mmaction/core/lr/tin_lr_hook.py
mmaction/core/lr/__init__.py
mmaction/core/scheduler/__init__.py	100.00% <0.00%> (ø)
mmaction/core/scheduler/lr_updater.py	96.55% <0.00%> (ø)
mmaction/datasets/pipelines/augmentations.py	92.87% <0.00%> (+0.22%)	⬆️
mmaction/models/recognizers/base.py	68.00% <0.00%> (+1.09%)	⬆️
mmaction/datasets/pipelines/formating.py	92.00% <0.00%> (+4.00%)	⬆️
mmaction/apis/inference.py	89.85% <0.00%> (+8.90%)	⬆️

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[kennymckormick]

Looks Good, have you tried this new feature? (using --cfg-options to set options of type str, int, float, etc. )

[dreamerlin]

Looks Good, have you tried this new feature? (using --cfg-options to set options of type str, int, float, etc. )

It works well for all data type.

[kennymckormick]

Can be merged after some minor fixes