feat: deprecating changing vest ownership

[wei3erHase]

• deprecates the changing of ownership of a vest / lockup (not needed and causes edge-cases)
• also erases related JS codebase to call it

[0xng]

this seeds unwrapping process is repeated quite a bit, is this some gas thing, or would we be good abstracting it into a small fn?

[wei3erHase]

hmmm, i'd prefer to change less than aim for a gas efficient method

[0xng]

again im not super familiar with either rust nor solana code but the 3 match cases are quite long, do you think it justifies extracting each one of them into a small function and so something like:

match tag {
    0 => Self::init,
    1 => Self::create,
    2 => Self::unlock
    _ => any error handling?
}