LDC 1.26.0-beta1

[kinke]

Glad to announce the first beta for LDC 1.26 - a bit late this 
time:

- Based on D 2.096.0+ (today's stable).
- Fixes a v1.25 regression wrt. corrupt TypeInfo_Interface.info.
- Some more fixes and dcompute improvements.

Full release log and downloads: 
https://github.com/ldc-developers/ldc/releases/tag/v1.26.0-beta1

Please help test, and thanks to all contributors & sponsors!