Added the source directory to all the search paths
Replaced packages with a DPK file for old Delphi versions and a group for newer Delphi versions.
Updated all include files
- Added TCEFWorkSchedulerQueueThread as an experimental way to handle the external message pump events for all platforms.
- Fixed backwards compatibility issues with Delphi 7.
- Fixed the functions to get the certificate issuer chains :
TCEFX509CertificateRef.GetDEREncodedIssuerChain and
TCEFX509CertificateRef.GetPEMEncodedIssuerChain.
- Replaced FmtStr by a custom function for backwards compatibility.
- Added the property TCEFApplication.EnableGPU.
- Updated cef.inc to include the latest Delphi versions.