~tdeo/serde_bare

ref: 0b84a989a3ad713a1da4bdf7bfb4deceaa86ab90 serde_bare/Makefile -rw-r--r-- 222 bytes
Makefile: add bench-all to .PHONY
Add Criterion benchmarks

Introduces a (hopefully) representative set of benchmarks for an
imaginary 'User session token', with a variable size depending on which
fields are populated. Does not yet cover floating point or union types.

Also included is a go-bare implementation of an identical benchmark, so
that we can compare our implementation again the 'reference' code.