[conformal/btcwire] 1fe9f9: Add benchmarks for readTxIn.

[Dave Collins]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcwire
  Commit: 1fe9f9e165ae31f5df6c418dd70568e72b798379
      
https://github.com/conformal/btcwire/commit/1fe9f9e165ae31f5df6c418dd70568e72b798379
  Author: Dave Collins <da...@conformal.com>
  Date:   2013-11-06 (Wed, 06 Nov 2013)

  Changed paths:
    M bench_test.go
    M internal_test.go

  Log Message:
  -----------
  Add benchmarks for readTxIn.

This commit adds a benchmark for the readTxIn function.