refactor: crates for c, wasm core (#155)

feat(1.8): multi world & achievements (#150)

feat: activities & aggregations (#149)

bump version

format attributes filter

feat: retrieve contracts & alpha 6 (#142)

feat: update to 1.7.0-alpha.5 with tokens supply & entities timestamps (

#140)

prepare 170 alpha 3 (#139)

prepare: 1.7.0-alpha.2 (#137)

chore: update to 1.6.1 (#135)