REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2510

Some firmwares:
- Report Shift modifier even when they report upper-case unicode letter.
- Report Ctrl modifier with "shifted" UniChar (i.e. X - 'A' + 1).

This change provides support for these firmwares preserving the compatibility
with the previous input handling.

We request this to be merged in edk2-stable202002.

Vitaly Cheptsov (1):
  ShellPkg: Add support for input with separately reported modifiers

 ShellPkg/Library/UefiShellDebug1CommandsLib/Edit/MainTextEditor.c   | 37 ++++++++++++++------
 ShellPkg/Library/UefiShellDebug1CommandsLib/EditInputBar.c          | 28 ++++++++++-----
 ShellPkg/Library/UefiShellDebug1CommandsLib/EditMenuBar.c           |  6 ++++
 ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/MainHexEditor.c | 11 +++---
 4 files changed, 58 insertions(+), 24 deletions(-)

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