* make new contructor

* add metrics to txpool

* fix review

* fix doc comment

* change to counters

* Update client/transaction-pool/src/metrics.rs

Co-Authored-By: Max Inden <[email protected]>

* Update client/transaction-pool/src/metrics.rs

Co-Authored-By: Max Inden <[email protected]>

* Update client/transaction-pool/src/metrics.rs

Co-Authored-By: Max Inden <[email protected]>

* Update client/transaction-pool/src/lib.rs

Co-Authored-By: Max Inden <[email protected]>

* Update client/transaction-pool/src/lib.rs

Co-Authored-By: Max Inden <[email protected]>

* use dedicated wrapper

Co-authored-by: Max Inden <[email protected]>