Increased Wasm binary limit

[lastmjs]

There is now a 10MiB limit on the code section, no limit on the data section, with a 30MiB uncompressed limit. So this means that we still need to chunk upload, but we can hopefully relax optimizations and possibly put the stdlib back into the main binary...thought that might make overall compilation slower. Time to experiment.

• See if we can remove the candid generation code
• rip out ic-wasm
• update everything to > dfx 0.14 (tests and getCanisterId)
• use metadata section of dfx.json
• use automatic gzipping