NCDK 1.1.2

This release adds ACDK project (A is named after ActiveX).
ACDK is wrapper to access NCDK from VBA.

NCDK-1.1.2.zip --- All binary
ACDK_Installer-1.1.2.msi --- Installer to use NCDK from VBA. Excel example is installed in ACDK folder in my documents.

This release is based on cdk-2.0. The changes from 1.1.2
Rename method name IChemObjectBuilder.Create---(...) to New---()
Rename interface name IAtomContainerSet to IChemObjectSet. Now IAtomContainerSet and AtomContainerSet are non-generic type.
Remove IDescriptor.Initialise method because it is not used.
Change types returned by Descriptors to generic one.
Add wrapper classes for COM interop.