Add CMake install command

[dvj]

A normal process for CMake based projects is:

 cmake ..
 make
 make install

where the make install step would bundle all the project outputs and copy them to the CMAKE_INSTALL_PREFIX.

This PR adds the cmake install commands to do so if CUR_PROJ is true

[codecov]

Codecov Report

Merging #79 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #79   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           9      9           
  Lines        1365   1365           
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  Hits         1365   1365

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[henryiii]

Thanks again!