Replace ifndef with pragma once

The pragma once directive will tell the compiler to include a header
file only one time. I find it a little cleaner than ifndef/define/endif
directive combination.
moving forward
updated tasks
Merge pull request #1 from action/pr/pragma

Replace ifndef with pragma once
replace GPLv3 license by Public domain
Merge pull request #2 from frabrunelle/master

replace GPLv3 license by Public domain
add in main2 build it out organized and neat comment too
Merge branch 'master' of github.com:dallyshalla/starCraft
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more knowledge more power
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latest procedures; getting closer to cpp prototype
prototype deployed imminent
get recursion for user to play all day
some recursion of utility
keep up the good work
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