Add groups for funds

CodeBlock flavour: Debug_GTK_GroupFunds
Compiler switch: _OMB_FUNDGROUPS
Makefile feature flag: TEST_OMB_GROUPS

Work items:
create form desktop: DONE
create form Android: DONE
create preference desktop: DONE
create preference Android: DONE
preference glib schema: DONE
preference INI: DONE
create db table desktop: DONE
create db table Android: DONE
create new db version desktop: DONE
create new db version Android: DONE
create conversion routines desktop: DONE
create conversion routines Android: DONE
remove feature compiler switch: DONE
archive in master database desktop: DONE
archive in master database Android: DONE
show groups in tree in archive view mode (desktop): DONE
show groups in fund chart in archive view mode (desktop): DONE
manual pages desktop: DONE
manual pages Android: DONE
manual android - copy options.png (en and it) in SourceForge: DONE
manual android - copy fundgroups.png (en and it) in SourceForge: DONE
add new files in the translation list: DONE
translations desktop: DONE
translations Android: DONE
upload translations in Launchpad: DONE
add feature: DONE
android version: DONE
MSW version: DONE
OpenSuse version: DONE
FreeBSD version: DONE
CODE MATURITY - add new files in the the list for CppChecker: DONE
CODE MATURITY - update omb34* filenames to omb35: DONE
Delete test feature flag from makefiles: DONE
Portable test version: DONE
MacOS test version: DONE
Flatpak test version: TODO