Palm Code V1.11 decoder

@L.ROGER PUG Rennes

v0.21 PalmCode v1.11 alpha release for comments - doesn't fully support () modifier - you can try copy/paste "code entered"

correction of PJ/PG coding/decoding submitted by Martin

v0.2 PalmCode v1.1 alpha release for comments - doesn't fully support () modifier - you can try copy/paste "code entered"

v0.1 PalmCode v1.01 alpha release for comments - doesn't support (), @ and ! modifier