add setSystemConfigByKey of console

[ghost]

https://github.com/FISCO-BCOS/go-sdk/blob/b1de38bba8cc61b7ea3a9c917905c3660a454897/cmd/commandline/root.go#L61

[Misspell] "writting" is a misspelling of "writing" (see on Sider)

| Rule | | - | | `"writting" is a misspelling of "writing"` |

[ghost]

https://github.com/FISCO-BCOS/go-sdk/blob/b1de38bba8cc61b7ea3a9c917905c3660a454897/cmd/commandline/commands.go#L1

[Golint] package comment should be of the form "Package commandline ..." (see on Sider)

| Rule | | - | | `c0ba318be7effd77ca9a41c4423a8f8769f6c801` |

[fisco-dev]

Here is an overview of what got changed by this pull request:

Complexity increasing per file
==============================
- cmd/commandline/root.go  2
- cmd/commandline/commands.go  6

Clones added
============
- cmd/commandline/commands.go  17

See the complete overview on Codacy