fix exec cargo tree output private registry

filter private registry by exec command:cargo tree

• fix issues:#16

fix const CARGO_TREE annotation

0.3.17

fix cargo tree

add const CARGO_TREE

• add const CARGO_TREE
• update readme file

fix get env const error

0.3.15

fix unit test

export PKG_VERSION

support get current project version

export SHORT_COMMIT

fix issue:#6

0.3.11

fix error when ci exec:cargo fix

0.3.10

dynamic get current commit branch by ci env;
fix bug:#8

0.3.8

update