ParseRDF.cpp triggers -Wbitwise-instead-of-logical

ParseRDF.cpp contains code such as:

`if ( ! (isArrayItem | isValueNode) ) {`

https://github.com/adobe/XMP-Toolkit-SDK/blob/581c41213ddcee1fbc72cbb532531102a6617a25/XMPCore/source/ParseRDF.cpp#L508

This triggers the Clang warning `-Wbitwise-instead-of-logical`. These uses of the bitwise `|` operator should be changed to the logical `||` operator.

Open XMPCore/source/ParseRDF.cpp at the linked code near line 508 and review the other bitwise `|` uses described in the issue. Change the affected logical conditions to use `||`, then verify that the Clang `-Wbitwise-instead-of-logical` warning is no longer triggered.

Written by the indexing model from the issue text.