update configs

[jin-s13]

1. Rename detectors/heads according to Rename heads detectors #667
2. Add multi-batch testing configs as default.

[codecov]

Codecov Report

Merging #734 (907bff8) into master (31d25a9) will decrease coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #734      +/-   ##
==========================================
- Coverage   83.15%   83.10%   -0.05%     
==========================================
  Files         170      170              
  Lines       12818    12818              
  Branches     2082     2082              
==========================================
- Hits        10659    10653       -6     
- Misses       1630     1634       +4     
- Partials      529      531       +2     

Flag	Coverage Δ
unittests	83.04% <ø> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
mmpose/deprecated.py	72.85% <0.00%> (-5.72%)	⬇️
mmpose/datasets/pipelines/shared_transform.py	87.50% <0.00%> (-1.00%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 31d25a9...907bff8. Read the comment docs.