Directory-components

[Full Changelog](https://github.com/uktrade/directory-components/pull/204/files)

Bug Fixes
- CI-108: Fix GA360 Mixin failing when request.sso_user is unset.

[Full Changelog](https://github.com/uktrade/directory-components/pull/197/files)

Implemented enhancements
- CI-108: Added middleware to check that all views have appropriate GA tags have been set or marked as 'skip_ga360'
- CI-108: Updated International Header GA tagging to match the new specification

Breaking changes
- Changed the ga_payload format for the GA360Mixin. (see mixins.GA360Payload for details).

[Full Changelog](https://github.com/uktrade/directory-components/pull/202/files)

**Implemented enhancements:**

- Added GA360 tagging for the domestic header
- Cleaned up unused templates and js

[Full Changelog](https://github.com/uktrade/directory-components/pull/199/files)

Breaking Changes

- Rename all instances of `directory_components_tags` to `directory_components`

The best way to do the rest of the upgrade is to switch to using the latest header/footer.

- CSS to do with the old header/footer have been removed.
- Feature flag no longer used:
- `NEW_HEADER_FOOTER_ON`
- Six templates have been removed:
- `header_footer/invest_footer.html`
- `header_footer/invest_header.html`
- `header_footer_old/footer.html`
- `header_footer_old/header.html`
- `header_footer_old/header_international_link_js_disabled.html`
- `header_footer_old/header_static.html`
- Images removed:
- `IIG_Invest_in_GREAT_White_WITH_Flag.png`
- `UK-Gov_STACK_WHITE_AW.png`
- JavaScript files removed:
- `invest-header.js`
- Templates renamed/moved:
- `header_footer/header_static.html` changed to `header_footer/domestic_header_static.html`
- `header_footer/footer.html` changed to `header_footer/domestic_footer.html`
- `header_footer/header.html` changed to `header_footer/domestic_header.html`

[Full Changelog](https://github.com/uktrade/directory-components/pull/201/files)

**Implemented enhancements:**

- Added if statements to 'informative banner' so label or content can be used without the other

[Full Changelog](https://github.com/uktrade/directory-components/pull/200/files)

**Implemented enhancements:**

- Added Investment Support Directory URL