add function about drag & drop(cansignaldata to cansignalsender)

[byunghyuk]

• drag & drop cansignaldata(message) -> cansignalsender : included signals cansignaldata(signal) -> cansignalsender : selected signal

[codecov[bot]]

Codecov Report

Merging #237 (48ee275) into master (c1cfda9) will decrease coverage by 1.75%. The diff coverage is 11.29%.

@@            Coverage Diff             @@
##           master     #237      +/-   ##
==========================================
- Coverage   98.83%   97.07%   -1.76%     
==========================================
  Files          96       98       +2     
  Lines        3009     3081      +72     
==========================================
+ Hits         2974     2991      +17     
- Misses         35       90      +55     

Impacted Files	Coverage Δ
src/components/cansignalsender/cansignalsender_p.h	100.00% <ø> (ø)
src/components/cansignaldata/searchmodel.cpp	37.93% <5.26%> (-62.07%)	:arrow_down:
...c/components/cansignalsender/cansignalsender_p.cpp	78.37% <5.88%> (-21.63%)	:arrow_down:
...ents/cansignalsender/cansignalsendertablemodel.cpp	8.69% <8.69%> (ø)
src/components/cansignaldata/cansignaldata_p.cpp	100.00% <100.00%> (ø)
...onents/cansignalsender/cansignalsendertablemodel.h	100.00% <100.00%> (ø)
src/gui/projectconfig/projectconfig.cpp	100.00% <0.00%> (ø)

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[rkollataj]

@byunghyuk Thanks for the new feature. New functionality is not covered by unit tests, but I don't want to block it any longer. If you will find a time to add relevant unit tests as a separate PR I would appreciate it :-)