MdeModulePkg/TerminalDxe: Extend the terminal console support types

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2186

Extend the support types of terminal console driver. New added types
are Linux, XtermR6, VT400 and SCO.

Refer to
https://www.ssh.com/ssh/putty/putty-manuals/0.68/Chapter4.html#config-funkeys

Add the missing VT100+ function keys map.

Add F1-F12 function keys map for Linux, XtermR6, VT400 and SCO.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>

MdeModulePkg/Universal/Console/TerminalDxe/TerminalConOut.c

@@ -222,6 +222,10 @@ TerminalConOutOutputString (
     case TerminalTypeVt100:
     case TerminalTypeVt100Plus:
     case TerminalTypeTtyTerm:
+    case TerminalTypeLinux:
+    case TerminalTypeXtermR6:
+    case TerminalTypeVt400:
+    case TerminalTypeSCO:
 
       if (!TerminalIsValidTextGraphics (*WString, &GraphicChar, &AsciiChar)) {
         //