Add license list to "Security and Compliance" nav section

Problem to solve

There isn't a license list visible to project users. The dependency list will show licenses that a dependency has (#10536 (closed)), but it is also beneficial to show licenses individually (with affiliated components).

Further context: currently, licenses may be marked blacklisted or approved by a maintainer/owner in settings > CI/CD > License Management. If a license was marked blacklisted, a project participant would only be aware if they commit a license and it is newly detected in the merge request (see another issue: #13489 (closed)). Other than the MR, there is no other visibility to users regarding what licenses are present (viewed by license) and what classifications they have (if any).

Intended users

Delaney, Development team lead
Sam, Security analyst
User responsible for compliance

Further details

Benefits to the user:

Brings visibility to license detected in the project for all project participants
Identifying where licenses (and affiliated dependencies) exist. If the user needs to remove dependencies, this could help them find them.

Issue contributes as a step toward vision:

Internal auditing and record-keeping for compliance users
Display license policies to all participants, such as blacklist/approved (https://gitlab.com/gitlab-org/gitlab-ee/issues/12941)
User ability to share the list with others (https://gitlab.com/gitlab-org/gitlab-ee/issues/13995)

Proposal

Info architecture	List view	View component

Add license list - information architecture, list accessible in the nav menu (https://gitlab.com/gitlab-org/gitlab-ee/issues/12250)	MVC displays licenses that exist in a project. Anchor license name to documentation URL and `?` icon by header anchors to license compliance documentation (both open new browser window)	Flow: user clicking the component link in table or X more (using https://gitlab.com/gitlab-org/gitlab-ee/issues/10536 pattern implemented by @dpisek). Title in the modal displays the name of the license.

Latest pipeline	Visual	Empty state	Component link issue

Text displays the latest default branch pipeline that succeeded by time - the time stamp follows common pattern, with timestamp display on hover	Note the subtext under header, which aims to clarify to the user what data is being shown and when it's updated ("latest pipeline" anchors to pipeline page) - adding similar helper text and link in dependency list #12190 (closed)	Empty state display, when feature is not set up or not license discovered. Button links to license compliance documentation page / other issues addressing this: #13992 (closed) and #12685 (closed). Visual image above text is the same as used on the dependency list empty state page	There is an issue with displaying component links, as there are different configuration and supporting languages between license/dependency list. In these cases, some components will not have links (display as non-anchored text) and may not have component information at all (display `-`)