[PATCH 1/3] oleaut32: Implement decoding of SLTG help strings.

[Vijay Kiran Kamuju]

Based on the patch by Sebastian Lackner <sebastian(a)fds-team.de>.

Tested using builtin oleview and ole1 typelib from older DDKs
oleview now shows the helpstrings for interfaces and coclasses

From: Dmitry Timoshkov <dmitry(a)baikal.ru>
Signed-off-by: Vijay Kiran Kamuju <infyquest(a)gmail.com>