Release v0.3.11
Essential changes:
- security bugfix in Go bindings
- run-time switch in portable build
- no-std support [exercised with limited stack size of 56K]
- serde support
- blst_miller_loop_n interface, with parallelized Rust and Go counterparts
- optional blst_fr_pentaroot subroutine
- Emscripten bindings
- hardened security on non-asm platforms