refactor for performance

What's Changed

• wrap results with Result and Option types by @jiyinyiyong in #3

Full Changelog: 0.0.1-a7...0.0.1-a8

try const generics

0.0.1-a7

try const generics; tag 0.0.1-a7

add take, skip; impl From trait

0.0.1-a6

add take, skip; impl From trait; tag 0.0.1-a6

wrap results with Result and Option types #3

0.0.1-a5

wrap results with Result and Option types; tag 0.0.1-a5

fix bug in dissoc

0.0.1-a4

fix bug in dissoc; tag 0.0.1-a4

u8 depth for smaller memory size

0.0.1-a3

u8 for smaller mem size; tag 0.0.1-a3

trying to support iterator; random fixes for calcit #2

0.0.1-a2

trying to support iterator; random fixes for calcit; tag 0.0.1-a2