LDC 1.32.0

[kinke]

Glad to announce LDC 1.32.0. Major changes:

- Based on D 2.102.2.
- LLVM for prebuilt packages bumped to v15.0.7.
- Linker-level dead code elimination is enabled by default for 
Apple, wasm and *all* ELF targets too now.
- Vector comparisons (==, !=, <, <=, >, >=) now yield a vector 
mask. Identity comparisons (`is`, `!is`) still yield a scalar 
`bool`.
- `-mabi` support for RISC-V targets. Thanks @zyedidia!
- New `timetrace2txt` tool for easier inspection of 
`--ftime-trace` output.
- `--ftime-trace` now also traces CTFE execution.

Full release log and downloads: 
https://github.com/ldc-developers/ldc/releases/tag/v1.32.0

Thanks to all contributors & sponsors!