Merge rust-bitcoin#4665: Use relative import paths rather than absolute

c0345f8 Use relative import paths rather than absolute (Martin Habovstiak)

Pull request description:

  When doing large refactorings such as moving entire modules around referring to items defined in a parent module by mentioning `crate` is umbersome since the paths change and make the move confusing. It also obscures the fact that some concepts are related.
  
  This changes a few paths to relative so that the refactoring in the future will be easier.


ACKs for top commit:
  apoelstra:
    ACK c0345f8; successfully ran local tests; lgtm
  tcharding:
    ACK c0345f8


Tree-SHA512: 3c6e774c81ccdaa5b27b06f25e80385dd0972232a3267cdabb671c86ba86feaa2672185815430ad8efa1cf3888e05c897f5c43d8750d6a071bd970570d4574cb

Author: apoelstra

bitcoin/src/network/params.rs

@@ -62,11 +62,10 @@
 
 use units::{BlockHeight, BlockHeightInterval};
 
-use crate::network::Network;
+use super::{Network, TestnetVersion};
 #[cfg(doc)]
 use crate::pow::CompactTarget;
 use crate::pow::Target;
-use crate::TestnetVersion;
 
 /// Parameters that influence chain consensus.
 #[non_exhaustive]