readd activate_all_components method to not break API

[saikishor]

Readd the activate_all_components method for backward compatibility

[mergify]

@saikishor, all pull requests must be targeted towards the master development branch.
Once merged into master, it is possible to backport to humble, but it must be in master
to have these changes reflected into new distributions.

[codecov]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (6608dbc) 31.03% compared to head (809a524) 62.38%.
Report is 4 commits behind head on humble.

Additional details and impacted files

@@             Coverage Diff             @@
##           humble    #1392       +/-   ##
===========================================
+ Coverage   31.03%   62.38%   +31.34%     
===========================================
  Files          95       95               
  Lines       10729    10176      -553     
  Branches     7421     7290      -131     
===========================================
+ Hits         3330     6348     +3018     
+ Misses        723      667       -56     
+ Partials     6676     3161     -3515     

Flag	Coverage Δ
unittests	62.38% <0.00%> (+31.34%)	⬆️

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

Files	Coverage Δ
hardware_interface/src/resource_manager.cpp	78.46% <0.00%> (+27.91%)	⬆️

... and 79 files with indirect coverage changes

[christophfroehlich]

LGTM, thanks for the quick fix!
Just for reference, this was removed with #1064

[bmagyar]

Thank you!