Add linting rules for formatting JSX.

[cjcenizal]

Blocked by #12725

All rules have been borrowed directly from AirBnB's rules.

Rules added:

• https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-closing-bracket-location.md
• https://github.com/yannickcr/eslint-plugin-react/blob/9e13ae2c51e44872b45cc15bf1ac3a72105bdd0e/docs/rules/jsx-closing-tag-location.md
• https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-indent-props.md
• https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-max-props-per-line.md
• https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-no-duplicate-props.md
• https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/self-closing-comp.md
• https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/react-in-jsx-scope.md
• https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-wrap-multilines.md
• https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-first-prop-new-line.md
• https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-equals-spacing.md
• https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/jsx-indent.md

[kimjoar]

These all look sane to me. When merged it would be great if you ship a new version and PR it against both kibana and xpack.