Remove using namespace and while(1)

[bcaddy]

• Remove all instances of using namespace and add proper namespace qualifiers to statements
  • Allows us to turn on google-build-using-namespace clang-tidy check
• Replace while(1) with while(true)
  • Allows us to turn on modernize-use-bool-literals clang-tidy check
• Permanantly disable misc-unused-parameters clang-tidy check since it causes too many issues with all our ifdefs

Close #233

[alwinm]

Just copy-pasting the error log here:

/__w/cholla/cholla/src/particles/particles_boundaries_gpu.cu:84:19: error: converting integer literal to bool, use bool literal instead [modernize-use-bool-literals,-warnings-as-errors]
  bool transfer = 0;
                  ^
                  false
/__w/cholla/cholla/src/particles/particles_boundaries_gpu.cu:88:44: error: converting integer literal to bool, use bool literal instead [modernize-use-bool-literals,-warnings-as-errors]
  if (side == 0 && pos < d_min) transfer = 1;
                                           ^
                                           true
/__w/cholla/cholla/src/particles/particles_boundaries_gpu.cu:89:45: error: converting integer literal to bool, use bool literal instead [modernize-use-bool-literals,-warnings-as-errors]
  if (side == 1 && pos >= d_max) transfer = 1;
                                            ^
                                            true

Looks like there were some non-hydro instances of modernize-use-bool-literals

[bcaddy]

This is ready for merging. Thanks to @alwinm for copying the error logs.