More bitmask support code

[jwillemsen]

* ridlbe/c++11/templates/cli/hdr/bitmask_idl_traits.erb:
  Added.

* ridlbe/c++11/config/cxx_type.rb:
* ridlbe/c++11/templates/cli/hdr/bitmask.erb:
* ridlbe/c++11/visitorbase.rb:
* ridlbe/c++11/visitors/bitmask.rb:
* ridlbe/c++11/visitors/bitset.rb:
* ridlbe/c++11/writers/stubheader.rb:
* tests/idl4/bitmask/client.cpp:
* tests/idl4/bitmask/test.idl:

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (5d80389) 59.70% compared to head (59729a1) 59.71%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #305   +/-   ##
=======================================
  Coverage   59.70%   59.71%           
=======================================
  Files         580      580           
  Lines       47594    47595    +1     
  Branches     4198     4198           
=======================================
+ Hits        28418    28419    +1     
  Misses      16089    16089           
  Partials     3087     3087           

Files Changed	Coverage Δ
tests/idl4/bitmask/client.cpp	100.00% <100.00%> (ø)

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.