Collects latency stats for hosts and dumps them at the end of each run.

# Conflicts:
#	lib/util/got/host-rules.js

This reverts commit e3937fa8.

This reverts commit c9bfccfd.

Closes #3640

Rewrites hostRules for increased flexibility. Includes renames of existing fields within a hostRule:
- `endpoint` -> `baseUrl`
- `host` -> `hostName`

Additionally, `domainName` has been added. Migration scripts should take care of these for users but it's recommended to update configs to match the new fields anyway.

With Renovate’s github platform code now using git for all file system operations, we need to tell Renovate which gitAuthor to use.

If you had already configured a gitAuthor in your bot config, you do not need to make any change.

Otherwise, to keep functionality as before, you should either:
(1) configure `gitAuthor` to match the bot’s account, or
(2) recreate your bot’s personal access token to include the “user:email” permission so that the bot can retrieve the email itself

BREAKING CHANGE: GitHub bot admins should either configure gitAuthor in their config or generate a new token with “user:email” permissions.

This reverts commit acb493be.

The github platform code will now use git "under the hood" instead of plucking files one by one from GitHub's API.

chore(build): fix vscode settings