Add travis jobs on ppc64le

[manish364824]

Hi, I had added ppc64le(Linux on Power) support on travis-ci and looks like its been successfully added. I believe it is ready for the final review and merge. The travis ci build logs can be verified from the link below.

https://travis-ci.com/github/manish364824/console_bridge/builds/198240914

Please have a look.

Regards, Manish Kumar

[codecov-io]

Codecov Report

Merging #92 into master will increase coverage by 33.33%. The diff coverage is n/a.

@@             Coverage Diff             @@
##           master      #92       +/-   ##
===========================================
+ Coverage   65.00%   98.33%   +33.33%     
===========================================
  Files           2        2               
  Lines          60       60               
===========================================
+ Hits           39       59       +20     
+ Misses         21        1       -20     

Impacted Files	Coverage Δ
src/console.cpp	98.21% <0.00%> (+35.71%)	:arrow_up:

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[clalancette]

Since Travis is no longer around (at least for open-source projects), I'm going to close this one out.