Visual Test Shell for BACnet SVN

Extend "any" keyword:
- save or load from variable ot EPICS
- compare

Add SafeCopy and SafeAppend, add maxlengths to avoid buffer overflows on long string data

Correct and clean up time and date comparisons and use of * and ? fields

Minor comments

Corrected the list of properties added by the real Appendix j, and their associated strings.
Fixed some of the template types used in CreateCommonProperty().
Increased the object_name allocation in generic_object from 32 to 64 chars.
Filled out a few more icons for the EPICS tree view.

Quick code fixes for BACnetListOfDeviceObjectReference processing.
(I'm using in Structured Views; were Life Safety Objects, which also use them, never qualified with VTS?)
Corrected spelling of subordinate-annotations in string tables.

Added enum and string values for new Property types, borrowing text from the bacnet-stack project.
Added some missing support for the new Positive Integer Value object type.

Change "log-enable" and "LOG_ENABLE" to "enable" and "ENABLE" per 135-2004b-5

Bug 3046835: don't throw on null buffer: size may be zero

Had wrong enumeration for event state filter