8183552: Move align functions to align.hpp
Reviewed-by: stuefe, pliden

8178499: Remove _ptr_ and _size_ infixes from align functions
Reviewed-by: rehn, tschatzl

8166804: Convert TestMetachunk_test to GTest
Reviewed-by: iignatyev

8151623: Zap freed Metaspace chunks in non-product binaries
Reviewed-by: stefank, jmasa

8076073: shared: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
Reviewed-by: stefank, brutisso

8037816: Fix for 8036122 breaks build with Xcode5/clang
Summary: Repaired or selectively disabled offending formats; future-proofed with additional checking
Reviewed-by: kvn, jrose, stefank

8026392: Metachunks and Metablocks are using a too large alignment
Reviewed-by: coleenp, jmasa

8026391: The Metachunk header wastes memory
Reviewed-by: coleenp, jmasa

8011268: NPG: Free unused VirtualSpaceNodes
Reviewed-by: mgerdin, coleenp, johnc

8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
Reviewed-by: johnc, coleenp

8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
Reviewed-by: coleenp