CodeSnip Old Code (SVN)

Added GenTLB to list of required build tools, and removed MIDL from same list.

Also removed any reference to workarounds for when MIDL was not available and deleted mentions of now defunct IGNOREMIDL environment variable / defined symbol.

Changed references to old GoogleCode source code repo to refer to replacement SourceForge repo instead.

Changed to use ExternalObj.ridl instead of ExternalObj.idl to compile type library.
This means we change from using MS's MIDL compiler to using Embarcadero's GenTLB compiler, thus removing dependency on MS SDK.
As a consequence IGNOREMIDL defined symbol is no longer necessary.

Converted source code of ExternalObj.tlb type library from IDL to RIDL and renamed file accordingly.

Updated to refer to Delphi 10 Seattle as last supported compiler.

Revised help topics to state that latest supported compiler is Delphi 10 Seattle.

Noted support for Delphi 10 Seattle compiler

Reverted commit r4725 that was made in error.

*** This commit was made in error and was reversed by commit r4726 ***

Added support for test compilation under, and auto-detection of, Delphi 10 Seattle.