Count of repo watchers is not provided

[awaitlink]

Presently hubcaps offers these fields regarding watchers, stars, and forks count in hubcaps::repositories::Repo:

hubcaps/src/repositories.rs

Lines 515 to 517 in d2d61ac

	pub forks_count: u64,
	pub stargazers_count: u64,
	pub watchers_count: u64,

However, note that for legacy support reasons, watchers_count is the count of stars as well:

https://api.github.com/repos/softprops/hubcaps

{
  "forks_count": 41,
  "stargazers_count": 166,
  "watchers_count": 166,

  "subscribers_count": 4
}

Instead, subscribers_count should be offered, since that is the actual repo watcher count.

The same might need to be done in hubcaps::search::ReposItem as well.

[JosephLing]

Can I take this up?