[PATCH v2 0/2] MR11582: conhost: Add basic VT control sequence processing.

[Lokesh Poovaragan (＠lokeshpoovaragan)]

Based on work by Thomas Csovcsity in !9973 

Adds basic CSI sequence processing in write_console: 

\- SGR: ANSI 16-color foreground/background, bright variants, reset, 256-color, 24-bit RGB mapped to 16-color palette 

\- CUP: cursor positioning via `\e[row;colH`

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49780

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  v2: conhost: Add basic VT control sequence processing.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/11582