Most of these methods did not contain all the relevant information
inside the object and were not using a similar formatting type.
Moreover, the existence of a suboptimal String method breaks usage
with more advanced data dumping tools like go-spew.

This is supposed to fix the FTP upload issue according to
travis-ci/travis-ci#9391.

- Uniform code style.

- Fixes #16271. What was appeneded was a pointer to
an object that changes during the iteration.
- The topic is allocated as a 4-byte array, fill partial topics
with 0s. Partial topics are currently disabled, but would
crash as they rely on the presence of byte number 3.

core/vm: Fixed typos in core/vm/interpreter.go

core/vm: Fixed typos

* cmd/puppeth: add constraints to network name

* cmd/puppeth: update usage of network arg

* cmd/puppeth: avoid package dependency on utils

cmd: implement preimage dump and import cmds

The parameter `rand` is unused in `PrivateKey.Decrypt`. Decryption in
the ECIES encryption scheme is deterministic, so randomness isn't
needed.

core: minor evm polishes and optimizations

Fix issue unmarshaling single parameter events from abigen generated go code #16208

* build: add GOBIN to PATH for gomobile

* build: install gobind alongside gomobile