Try to get to compile with Delphi 11

[delphidabbler]

Unlike some earlier Delphi post Delphi XE, Delphi 11 will actually open CodeSnip without any out of memory errors. It's time to update if possible.

A 64 bit version would be nice too!

[delphidabbler]

Several stages to this:

• [ ] Get to compile with Delphi 11 Win32
• [ ] Get rid of warnings with Delphi 11 Win32
• [ ] Get rid of as many hints as possible with Delphi 11 Win32
• [ ] Fully scope all unit references
• [ ] Test & Debug
• [ ] Make Delphi 11 Win 32 the default compiler in following releases
• [ ] Try to compile with Delphi 11 Win64

[delphidabbler]

Backport as many of Delphi 11 changes as possible into Delphi XE version.

[delphidabbler]

After minimum changes to get to compile in Delphi 11 main menu has mysteriously disappeared and program is giving stack overflow and close down.

I think this is too much work to fix.

Probably easier and safer to start a ground up rewrite under Delphi 11.

If I decide to try that I'll open a new issue.

Abandoning this attempt here, and closing issue with "wontfix" tag.