docs(doxygen ): настроил генерацию документации

See merge request !33

fix(iterator): LOL

See merge request !32

Fix select

See merge request !31

With null

See merge request !29

Mvcc

See merge request !30

# Conflicts:
#   clouddb/include/querybuilder.h
#   clouddb/src/TAM/TAM.c
#   clouddb/src/cass/querybuilder.c

Select all

See merge request !27

Mvcc

See merge request !28