Clean up of PIC microcontrollers symbols

Remove duplicates
Update unique symbols to match Library Convention
Update microchip_pic10mcu.lib

Create aliases. Applying Library Convention rules.
Merge remote-tracking branch 'upstream/master'
Fix pin position in PIC18(L)F13K50-E/SO
Update microchip_pic12mcu.lib
Merge pull request #62 from keruseykaryu/master

Clean up the PIC microcontrollers mess