* Adding component, story and documentation file

* forgot files

* Add label and formvalidation

* fix for error/invalid message

* fixing font color when input is disabled

* red border if invalid

* fixing props and label margin

* added support for icon in input

* support for button and loading state

* redoing some of the markup

* fixing height on addons

* Adding some basic documentation

* remove not used types file

* Add some more knobs

* move component to it's own directory, updated styling

* Adding component, story and documentation file

* forgot files

* Add label and formvalidation

* fix for error/invalid message

* fixing font color when input is disabled

* red border if invalid

* fixing props and label margin

* added support for icon in input

* support for button and loading state

* redoing some of the markup

* fixing height on addons

* Adding some basic documentation

* remove not used types file

* Add some more knobs

* move component to it's own directory, updated styling

* Add Icon component

* Add useClientRect helper hook

* Add missing Icon types

* Simplify Inputs styling (POC)

* Render theme knob in a separate group

* Update packages/grafana-ui/src/components/Forms/Input/Input.tsx

Co-Authored-By: Peter Holmberg <peterholmberg@users.noreply.github.com>

* Update packages/grafana-ui/src/components/Forms/Input/Input.tsx

* Improve comment

* Restore increase/decrease spinner on number inputs

* Add period

* use input color variables

* fix test

* Expose input styles from getFormStyles