- fix for review
- fix in buffer overrun detector

less than allowed. Changes in all other files relate auxiliary methods for
catching similar bugs in future.

renamed "current" to "primary" when referring to accumulators

forced unit conversion code to inline
unit conversion now no longer converts all the way to base and back, but tries
to find equivalent units as early as possible
fixed another llinfos instance
scene monitor now outputs n/a for invalid samples

made getPrimaryAccumulator return a reference since it was an
always non-null pointer
changed unit conversion to perform lazy division in order to avoid truncation
of timer values

continued conversion to units system
made units perform type promotion correctly and preserve type in arithmetic
e.g. can now do LLVector3 in units
added typedefs for remaining common unit types, including implicits

converted many values over to units system in effort to track down
source of 0 ping

replace llinfos, lldebugs, etc with new LL_INFOS(), LL_DEBUGS(), etc.

added percentage/ratio units
added auto-range and auto tick calculation to stat bar to automate display stats

BUG-2707 make use of OsOutputDebugString _DEBUG only on Windows to avoid throwing unhandlable exceptions in coroutines in RelWithDebInfo builds

cleaning up build
moved most includes of windows.h to llwin32headers.h to disable min/max macros, etc
streamlined Time class and consolidated functionality in BlockTimer class
llfasttimer is no longer included via llstring.h, so had to add it manually in several places

MAINT-1684: Correcting the calls to ll_aligned_free() which should have actually been to ll_aligned_free_16().

MAINT-1684: Attempt at correcting the linux crash on startup.  Replacing the memory allocations and frees in the LLPrivateMemoryPool with aligned memory allocations and frees.

fix for VWR-26864: Recent commit to Snowstorm project introduces frequent errors and crashes associated with private memory pool.