Allow adding a prefix to the informant (#6174)

* Initial commit

Forked at: 49b15615
Parent branch: origin/master

* Add a Service Configuration's field + adapt informant + provide means to CLI

* CLEANUP

Forked at: 49b15615
Parent branch: origin/master

* fix tests

* fixed bad path to object

* Change OutputFormat enum to struct

* Add informant_prefix to builder and service

* Revert "Change OutputFormat enum to struct"

This reverts commit cd86c583.

* Revert "fix tests"

This reverts commit a3c306eb.

* Revert "Add a Service Configuration's field + adapt informant + provide means to CLI"

This reverts commit 9c2e7267.

* Implementation using the ServiceBuilder

* reduce line length

* fix line width again

* WIP

Forked at: 49b15615
Parent branch: origin/master

* WIP

Forked at: 49b15615
Parent branch: origin/master

* WIP

Forked at: 49b15615
Parent branch: origin/master

* use struct instead of enum

* WIP

Forked at: 49b15615


Parent branch: origin/master

* Update client/service/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

* improve doc

* Update client/service/src/builder.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Update client/service/src/builder.rs

Co-authored-by: Bastian Köcher <[email protected]>

* change code

* Update client/informant/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

* enable_color

* reorg log

* remove macro

* Removed builder for informant prefix

* fix doc

* Update client/informant/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Update client/informant/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Update client/informant/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Update client/informant/src/lib.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Update client/service/src/builder.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Update client/service/src/builder.rs

Co-authored-by: Bastian Köcher <[email protected]>

* Update client/service/src/builder.rs

Co-authored-by: Bastian Köcher <[email protected]>

Co-authored-by: Bastian Köcher <[email protected]>