Move profile data analysis into analyzeme from summarizeme

[rylev]

This moves analysis of self profile data from the summarize crate to the analyzeme crate. This is needed for rustc-perf which will move from storing self profile data in the database to analyzing the data on demand. The changes can be summarized as follows:

• summarize::analysis::perform_analysis becomes analyzeme::ProfileData::perform_analysis
• summarize::query_data::{Results, QueryData} become analyzeme::{AnalysisResults, QueryData}
• Some code is shuffled in summarize::diff caused by the fact that the diff types and their non-diff counterparts no longer live in the same crate
• The diff types are moved into the diff module
• This unfortunately makes analyzeme depend on serde. We could remove this dependency but we'd basically have to repeat AnalysisResults and QueryData definitions in summarizeme`.

[Mark-Simulacrum]

Overall looks good.

[michaelwoerister]

Looks good to me. Since summarize in an executable (and thus no other crates can depend on it), we should be able to move stuff out of it without a major version bump, right?

[rylev]

Looks good to me. Since summarize in an executable (and thus no other crates can depend on it), we should be able to move stuff out of it without a major version bump, right?

That was my understanding, yes.