Revert "Reorganize R2 thread bucket manager v0.5, add templated class for possibility continue parallilize tasks. testing (no any changes must be currently). need check compile under win. Ready for testing."

This reverts commit 853f653df31a80d72c040a673beaf172adbd2dbb.
[mr2933] fix crush after 2931
Merge branch 'master' into testing
Reorganize R2 thread bucket manager v0.5.1, add templated class for possibility continue parallilize tasks. testing (no any changes must be currently). need check compile under win. Ready for testing.
related to #1402 and some more old.
use costructor/destructor in ViewPoint instead of manual clearing. some safety and speedup.
some small corrects in transports load/unload