Windows: Add WM_CHAR input support (not used for anything yet).

Some unicode cleanup.
Oops, update native too
Add options to import/export .sym files from the menu
Merge pull request #6466 from Kingcom/Symbols

Add options to import/export .sym files from the menu
Change RandMAC function call to function pointer

Left out .str() stringstream function

No need for forward declaration

Left an extra pair of parenthesis on CreateRandMAC

Something deleted a )...
Merge pull request #6467 from GreenBagels/init-rand-mac

Change RandMAC function call to function pointer
Use the same vertex decoders for splines.

Had the vert type bits at the top.
Minor optimization for prescale/not, fix switch.