Add initial fixtures for CI builds

db/fixtures/development/14_builds.rb

+Gitlab::Seeder.quiet do
+  project = Project.first
+  commits = project.repository.commits('master', nil, 10)
+  commits_sha = commits.map { |commit| commit.raw.id }
+  ci_commits = commits_sha.map do |sha|
+    project.ensure_ci_commit(sha)
+  end
+
+  ci_commits.each do |ci_commit|
+    ci_commit.create_builds('master', nil, User.first)
+  end
+end