I2C_LCD: add attribute pinMapping (only parser, not realy working yet)

git-svn-id: https://svn.code.sf.net/p/fhem/code/trunk@5406 2b470e98-0d58-463d-a4d8-8e2adae1ed80
98_configdb.pm - removed very experimental functions

git-svn-id: https://svn.code.sf.net/p/fhem/code/trunk@5407 2b470e98-0d58-463d-a4d8-8e2adae1ed80
FRM: fix rereadcfg for NetworkFirmata

git-svn-id: https://svn.code.sf.net/p/fhem/code/trunk@5408 2b470e98-0d58-463d-a4d8-8e2adae1ed80
Merge branch 'master' into owx_async_nothread