Marked FunctionPointer and friends as deprecated
Marked FunctionPointer and friends as deprecated

FunctionPointer/FunctionPointerArg0/FunctionPointerArg1 has been
replaced by the more flexible Callback template class.

For the motivation behind adopting the Callback class:
https://github.com/mbedmicro/mbed/pull/1783

maximmbed/mbed,mmorenobarm/mbed-os,screamerbg/mbed,catiedev/mbed-os,svastm/mbed,andcor02/mbed-os,ryankurte/mbed-os,karsev/mbed-os,nRFMesh/mbed-os,mikaleppanen/mbed-os,betzw/mbed-os,geky/mbed,bulislaw/mbed-os,svastm/mbed,karsev/mbed-os,Archcady/mbed-os,Archcady/mbed-os,screamerbg/mbed,cvtsi2sd/mbed-os,RonEld/mbed,monkiineko/mbed-os,kl-cruz/mbed-os,fanghuaqi/mbed,kl-cruz/mbed-os,adustm/mbed,bcostm/mbed-os,andreaslarssonublox/mbed,mikaleppanen/mbed-os,CalSol/mbed,infinnovation/mbed-os,netzimme/mbed-os,kl-cruz/mbed-os,mmorenobarm/mbed-os,adamgreen/mbed,mbedmicro/mbed,geky/mbed,arostm/mbed-os,svastm/mbed,bcostm/mbed-os,mikaleppanen/mbed-os,nvlsianpu/mbed,bcostm/mbed-os,tung7970/mbed-os-1,theotherjimmy/mbed,svogl/mbed-os,fvincenzo/mbed-os,mikaleppanen/mbed-os,jeremybrodt/mbed,arostm/mbed-os,RonEld/mbed,nvlsianpu/mbed,radhika-raghavendran/mbed-os5.1-onsemi,arostm/mbed-os,adustm/mbed,theotherjimmy/mbed,fanghuaqi/mbed,kjbracey-arm/mbed,fanghuaqi/mbed,HeadsUpDisplayInc/mbed,theotherjimmy/mbed,YarivCol/mbed-os,svogl/mbed-os,c1728p9/mbed-os,jeremybrodt/mbed,HeadsUpDisplayInc/mbed,adamgreen/mbed,nRFMesh/mbed-os,pradeep-gr/mbed-os5-onsemi,infinnovation/mbed-os,svogl/mbed-os,jeremybrodt/mbed,infinnovation/mbed-os,c1728p9/mbed-os,pradeep-gr/mbed-os5-onsemi,netzimme/mbed-os,j-greffe/mbed-os,bcostm/mbed-os,svastm/mbed,andcor02/mbed-os,theotherjimmy/mbed,arostm/mbed-os,fahhem/mbed-os,netzimme/mbed-os,mbedmicro/mbed,pradeep-gr/mbed-os5-onsemi,infinnovation/mbed-os,mmorenobarm/mbed-os,mbedmicro/mbed,netzimme/mbed-os,mazimkhan/mbed-os,c1728p9/mbed-os,pradeep-gr/mbed-os5-onsemi,bulislaw/mbed-os,betzw/mbed-os,NXPmicro/mbed,kl-cruz/mbed-os,jeremybrodt/mbed,rgrover/mbed,maximmbed/mbed,ryankurte/mbed-os,tung7970/mbed-os,andreaslarssonublox/mbed,YarivCol/mbed-os,adamgreen/mbed,c1728p9/mbed-os,svogl/mbed-os,adustm/mbed,andcor02/mbed-os,catiedev/mbed-os,CalSol/mbed,nvlsianpu/mbed,radhika-raghavendran/mbed-os5.1-onsemi,nRFMesh/mbed-os,j-greffe/mbed-os,NXPmicro/mbed,cvtsi2sd/mbed-os,svastm/mbed,tung7970/mbed-os-1,maximmbed/mbed,pradeep-gr/mbed-os5-onsemi,j-greffe/mbed-os,c1728p9/mbed-os,bulislaw/mbed-os,kjbracey-arm/mbed,screamerbg/mbed,nRFMesh/mbed-os,betzw/mbed-os,mazimkhan/mbed-os,bcostm/mbed-os,maximmbed/mbed,pradeep-gr/mbed-os5-onsemi,catiedev/mbed-os,CalSol/mbed,fvincenzo/mbed-os,jeremybrodt/mbed,bulislaw/mbed-os,andreaslarssonublox/mbed,maximmbed/mbed,bulislaw/mbed-os,cvtsi2sd/mbed-os,monkiineko/mbed-os,YarivCol/mbed-os,geky/mbed,HeadsUpDisplayInc/mbed,tung7970/mbed-os-1,kjbracey-arm/mbed,radhika-raghavendran/mbed-os5.1-onsemi,NXPmicro/mbed,radhika-raghavendran/mbed-os5.1-onsemi,j-greffe/mbed-os,mazimkhan/mbed-os,fanghuaqi/mbed,adamgreen/mbed,adamgreen/mbed,karsev/mbed-os,catiedev/mbed-os,radhika-raghavendran/mbed-os5.1-onsemi,andcor02/mbed-os,kjbracey-arm/mbed,karsev/mbed-os,Archcady/mbed-os,mazimkhan/mbed-os,ryankurte/mbed-os,adamgreen/mbed,fahhem/mbed-os,ryankurte/mbed-os,kl-cruz/mbed-os,screamerbg/mbed,mmorenobarm/mbed-os,nvlsianpu/mbed,monkiineko/mbed-os,CalSol/mbed,betzw/mbed-os,mmorenobarm/mbed-os,radhika-raghavendran/mbed-os5.1-onsemi,cvtsi2sd/mbed-os,Archcady/mbed-os,YarivCol/mbed-os,rgrover/mbed,mazimkhan/mbed-os,monkiineko/mbed-os,mikaleppanen/mbed-os,arostm/mbed-os,catiedev/mbed-os,NXPmicro/mbed,HeadsUpDisplayInc/mbed,mbedmicro/mbed,arostm/mbed-os,karsev/mbed-os,YarivCol/mbed-os,fahhem/mbed-os,nvlsianpu/mbed,cvtsi2sd/mbed-os,andreaslarssonublox/mbed,bulislaw/mbed-os,YarivCol/mbed-os,nRFMesh/mbed-os,fvincenzo/mbed-os,adustm/mbed,nvlsianpu/mbed,tung7970/mbed-os,rgrover/mbed,tung7970/mbed-os,fanghuaqi/mbed,fvincenzo/mbed-os,mbedmicro/mbed,netzimme/mbed-os,CalSol/mbed,fahhem/mbed-os,fahhem/mbed-os,theotherjimmy/mbed,j-greffe/mbed-os,c1728p9/mbed-os,theotherjimmy/mbed,andcor02/mbed-os,rgrover/mbed,geky/mbed,screamerbg/mbed,HeadsUpDisplayInc/mbed,j-greffe/mbed-os,karsev/mbed-os,mazimkhan/mbed-os,monkiineko/mbed-os,betzw/mbed-os,tung7970/mbed-os,RonEld/mbed,infinnovation/mbed-os,mmorenobarm/mbed-os,tung7970/mbed-os,infinnovation/mbed-os,CalSol/mbed,monkiineko/mbed-os,andcor02/mbed-os,HeadsUpDisplayInc/mbed,rgrover/mbed,catiedev/mbed-os,NXPmicro/mbed,tung7970/mbed-os-1,fahhem/mbed-os,nRFMesh/mbed-os,mikaleppanen/mbed-os,cvtsi2sd/mbed-os,RonEld/mbed,adustm/mbed,ryankurte/mbed-os,screamerbg/mbed,geky/mbed,svogl/mbed-os,betzw/mbed-os,RonEld/mbed,RonEld/mbed,andreaslarssonublox/mbed,svogl/mbed-os,NXPmicro/mbed,kl-cruz/mbed-os,maximmbed/mbed,ryankurte/mbed-os,bcostm/mbed-os,tung7970/mbed-os-1,fvincenzo/mbed-os,netzimme/mbed-os,Archcady/mbed-os,adustm/mbed,Archcady/mbed-os