[API] Add support to get bundle report for a given commit

[JerrySentry]

GQL: Add a resolver in Commit type, that gets the bundle report of the commit, that displays the total size of all the bundles and size of each individual bundle

Commit.bundleAnalysisReport: BundleAnalysisReportResult

union BundleAnalysisReportResult =
    BundleAnalysisReport
  | MissingHeadReport

type BundleAnalysisReport {
  sizeTotal: Int!
  loadTimeTotal: Float!
  bundles: [BundleReport]!
}

type BundleReport {
  name: String!
  sizeTotal: Int!
  loadTimeTotal: Float!
}