Rename eval_string

[musm]

eval_string is a pretty generic term to export. I propose we rename it to something more descriptive. Maybe matlab_eval or meval ? Suggestions welcome.

[musm]

# option 1  (similar to RCall.jl and JavaCall.jl)
meval("func([2 3 1])")
m"[x,y] = func([2 3 1])"
xx, yy = mcall(:meshgrid, 2, x, y)

# option 2
mateval("func([2 3 1])")
mat"[x,y] = func([2 3 1])"
xx, yy = matcall(:meshgrid, 2, x, y)

# option 3
matlab_eval("func([2 3 1])")
mat"[x,y] = func([2 3 1])"
xx, yy = matlabcall(:meshgrid, 2, x, y)

# option 4
mxeval("func([2 3 1])")
mx"[x,y] = func([2 3 1])"
xx, yy = mxcall(:meshgrid, 2, x, y)

My preference is for option 1 or option 4.

cc @simonster, @ChrisRackauckas , @yuyichao

[ChrisRackauckas]

They're all option 1 lol.

But I like the last (option 3) and see all of them as good.

edit to add the option number.

[goszlanyi]

I also prefer the matlab_eval option.
But why not call it simply matlab?