Improve buddy high order allocation
  Make removeCommonArea O(1) instead of O(N)
  Add limit to left/right search


storage/ndb/src/kernel/blocks/dbtup/DbtupDebug.cpp:
  Add info to buddy module test about 
  1) loops being made in buddy
  2) how much was allocated
storage/ndb/src/kernel/blocks/dbtup/DbtupPagMan.cpp:
  1) make removeCommonArea o(1) - as list is (after fix) double linked anyway
  2) set page_state = ZFREE_COMMON insertCommonArea and ~ZFREE_COMMON in removeCommonArea
  3) add max loops in search left/right
  4) add more debug info