Added shorthand read/write32/16/8 methods to CortexM target.
Added shorthand read/write32/16/8 methods to CortexM target.

tgarc/pyOCD,geky/pyOCD,bridadan/pyOCD,NordicSemiconductor/pyOCD,adamgreen/pyOCD,geky/pyOCDgdb,oliviermartin/pyOCD,mbedmicro/pyOCD,geky/pyOCD,wjzhang/pyOCD,adamgreen/pyOCD,wjzhang/pyOCD,0xc0170/pyOCD,mbedmicro/pyOCD,flit/pyOCD,molejar/pyOCD,matthewelse/pyOCD,pyocd/pyOCD,mesheven/pyOCD,devanlai/pyOCD,mesheven/pyOCD,devanlai/pyOCD,c1728p9/pyOCD,0xc0170/pyOCD,matthewelse/pyOCD,bridadan/pyOCD,tgarc/pyOCD,matthewelse/pyOCD,mbedmicro/pyOCD,0xc0170/pyOCD,bridadan/pyOCD,pyocd/pyOCD,c1728p9/pyOCD,c1728p9/pyOCD,devanlai/pyOCD,molejar/pyOCD,oliviermartin/pyOCD,wjzhang/pyOCD,molejar/pyOCD,oliviermartin/pyOCD,mesheven/pyOCD,flit/pyOCD,geky/pyDAPLink,adamgreen/pyOCD,tgarc/pyOCD