Escape codes that still aren't handled...

[RyanHope]

Here are the remaining tests in vttest that wTerm still fails on.

VT220 Tests

1. Protected Areas (DECSCA)
2. 8-bit controls (S7C1T / S8C1T)

VT320 Tests

Pretty much everything

VT420 Tests

1. Back Index (DECBI) c3782fd
2. Forward Index (DECFI) c3782fd
3. Delete Column (DECDC) 453d4ad
4. Insert Column (DECIC) 453d4ad

VT520 Tests

1. Set Cursor Style (DECSCUSR) 2bd1ee0

ISO-6429 Cursor-Movement

1. Cursor-Horizonal-Index (CHT)
2. Next-Line (CNL)

ISO-6429 Color

1. BCE-style clear line/display (ECH, Indexing)
2. VT102-style features with BCE (Insert/Delete Char/Line) 924f4ec
3. Test of screen features with BCE 924f4ec
4. Test of screen features with ISO 6429 SGR 22-27 codes 924f4ec

Miscellaneous ISO-6429 (ECMA-48) Tests

1. Repeat (REP)
2. Scroll-Left (SL) aa3208b
3. Scroll-Right (SR) aa3208b

Known bugs

1. Funny scroll regions 1c2dad4

[stbuehler]

VT520 cursor styles done: 2bd1ee0