reg.exe: Add query function (try 2, resend)

[Hugh McMaster]

This patch adds a registry query function in programs/reg.exe and includes support for recursion.

This is a resend of the second version, which addressed the concerns raised by Nikolay Sivov on the wine-devel mailing list.

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 programs/reg/reg.c |  207 +++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 196 insertions(+), 11 deletions(-)
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