AqBanking

Started simplifying BUILD process.

- no longer need to create symlinks
- started setting explicit paths to include directives
- moved some code files from previous "types" folder to "types2"
- moved some files from "backendsupport" to "dialogs"
- removed "types"...

Result of "make format".

BUILD: Added Makefile target "typedefs".

BUILD: Major simplification; directly use profiles/*.conf.

The only things changing when translating *.conf.in files were the version
variable, and since that is now directly tied to AqBanking by direct loading
there is no real need to translate each an every profile file by...

Added tutorial5 which shows usage of "List_ForEach" functions.

AqBanking6: Statically link plugins into AqBanking.

- therefore I had to move the plugins folder below "libs" and create the
real AqBanking library (containing the plugins now) in "libs"

tutorial4: Adapted to latest changes.

AqHBCI: Fixed a bug.

AqBanking6: Consolidating current status.

- removed banking6.h
- moved config stuff, work on config manager usage
- improved APIDOC
- temporarily use %HOME/.aqbanking/settings6
- declare AB_COUNTRY deprecated
- moved config code from AB_PROVIDER to AB_BANKING, so we don't have to...

AqBanking6: Added some more convenience functions for account spec lists.