[KS]

[KS]
- Fix a bad cast in KsGetDevice which led to a crash
- Store IKsFilter in create item storage which is needed later by the pin property handler
- There is no need to copy the existing pin factories, just add pin factories which are added dynamically
- Handle possible null values for node types & names
- Put allocated objects into object bags which can be released later automatically
- Fix access IKsFilterFactory interface in IKsFilterFactory_Create
- graphedt can now 'open' tv tuner and enumerate pins / communication / interface. Code required for devenum not yet commited

svn path=/trunk/; revision=46634