ShellPkg: Fixes for the ‘type’ command: - Better handling to skip byte order mark in Unicode files. - Only display valid ASCII characters. - Change to use ShellPrintEx() instead of Print(). - Print each character instead of %s to avoid possible overrun when not NULL terminated. - Check for ExecutionBreak.
ShellPkg: Fixes for the ‘type’ command:
- Better handling to skip byte order mark in Unicode files.
- Only display valid ASCII characters.
- Change to use ShellPrintEx() instead of Print().
- Print each character instead of %s to avoid possible overrun when not NULL terminated.
- Check for ExecutionBreak.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chris Phillips <chrisp@hp.com>
reviewed-by: Jaben Carsey <jaben.carsey@intel.com>

git-svn-id: 3158a46dfd52e07d1fda3e32e1ab2e353a00b20f@14788 6f19259b-4bc3-4df7-8a09-765794883524

MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2,MattDevo/edk2