Add value <-> registers converter helpers.

[janiversen]

One of the more frequent problems, "I am trying to read/write a float register", this is of course not 1 register but 2 or 4 registers.

This PR add helpers functions to easily convert:

• int to registers (INT16, INT32, INT64)
• registers to int
• float to registers (FLOAT32, FLOAT64)
• registers to float
• string to registers
• registers to string

[alexrudd2]

I had undeleted the branch to get dfc36b2, but no longer need it. :)

[janiversen]

you are living a dangerous life :-)

You restore branch "convert_values" and tell me you no longer need it, which I just deleted about a minute ago, but your new PR uses "convert-values"....not much room for errors. Luckily I was awake and not on auto-pilot.

Not a problem, just the highlight of my day.

[alexrudd2]

you are living a dangerous life :-)

You restore branch "convert_values" and tell me you no longer need it, which I just deleted about a minute ago, but your new PR uses "convert-values"....not much room for errors. Luckily I was awake and not on auto-pilot.

Not a problem, just the highlight of my day.

Haha, for danger I also use system Python and not a virtual environment. 😱

Actually, I was on my way to delete convert_values again when I noticed you deleted it 3 minutes before me...