LRIM/RTRIM/TRIM built in functions

[boriel]

It would be handy to have a 

LTRIM
RTRIM
TRIM

functions built in to ZXB

I know you could right one but I wonder if there is a faster way to be compiled?

thanks

Good idea. I will include them in the next release.
Indeed there is a duplicated str library, and one of them will be removed.
I'll keep you updated with this.