feat: Allow to display children of found matches (dowjones#204)

* Use different classname than bootstrap

`hide` classname is being used by bootstrap to hide elements. For us, we need to change the classname here in react-dropdown-tree-select to display everything correctly.

* Option to show children on search results

This allows for children of found matches to be displayed. With this option, one can search for the parent and then see all children and select any.

* Add docs/bundle.js

* Remove unnecessary line

* nicer code

* Code optimization

* Rename addChildrensToTree

* Update docs

* ESLint

* Remove bootstrap hide workaround

* test: Updated syntax after merging latest develop

* chore: Updated bundle after merging latest develop

feat: Support disabled/readOnly states ✨ (dowjones#200)

* fix: Show cursor in Edge, IE 11 properly

* feat: Support readOnly state

* chore: Fix lint errors

* docs: Add documentation for form states

* chore: Use action's id if available, otherwise fall back to array index

* test: Add tests for actions

* test: Updated snapshots

Merge branch 'develop'

feat: disable input (dowjones#188) ✨

* chore: Update package.json dependencies

* feat: Add disabled prop to Input and DropdownTreeSelect

* chore: Rebuild bundle.js

* style: Show arrow as disabled, update disabled logic

* chore: Update docs

* chore: Make demo script easier to use

fix: Remove event listner on unmount 🐛 (dowjones#182)

Fixes dowjones#180

fix: Correctly show parent nodes during search (dowjones#183)

Closes dowjones#155

chore: Adding back semantic-release

docs: Add showDropdown prop description to readme (dowjones#152)

Closes dowjones#144

fix: Do not run eslint on docs before build

fix: Remove console.table statements

Also prevent console statements from getting checked in

Closes dowjones#133