audit fixes

[baryon2]

Description of PR...

Changes

• Item 1
• Item 2

API Updates

New Features (required)

This section should include details regarding new features added to the library.
This should include both open and private APIs. If including both, create two
sub headers underneath this one to label updates accordingly.

Deprecations (required)

All deprecations should be listed here in order to ensure the reviewer understands
which sections of the codebase will affect contributors and users of the library.

Enhancements (optional)

The enhancements section should include code updates that were included with this
pull request. This sections should detail refactoring that might have affected
other parts of the library.

Checklist

• Unit tests
• Documentation

References

(optional)

Include important links regarding the implementation of this PR.
This usually includes and RFC or an aggregation of issues and/or individual conversations
that helped put this solution together. This helps ensure there is a good aggregation
of resources regarding the implementation.

Fixes #85, Fixes #22, Fixes username/repo#123
Connects #123

[asanjeevrao]

Total Coverage: 0 %

Coverage report

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
All files	67.65	45.23	54.36	68.94
src	100	100	0	100
index.ts	100	100	0	100
src/crypto/bip32	72.22	100	50	72.22
hd-wallet.ts	66.66	100	50	66.66	6-10,22
hdwallet-token.ts	83.33	100	50	83.33	24
src/crypto/bip39	83.33	100	62.5	83.33
bip39-token.ts	100	100	100	100
bip39.ts	75	100	50	75	5,8,11
src/crypto/ecc	85.71	20	60	84.61
secp256k1.ts	85.71	20	60	84.61	13,28
src/crypto/hashes	77.77	100	0	71.42
hashes.ts	77.77	100	0	71.42	10,14
src/encryption-utils	100	75	100	100
encryption-utils.ts	100	75	100	100	52-68
src/key	53.43	22.41	53.48	55.26
eth-wallet.ts	43.52	30	36.84	46.83	39,93-163
wallet-utils.ts	96.77	76.92	100	96.66	53
wallet.ts	47.72	0	57.89	48.14	32-71,132-168
src/keychain	69.03	59.72	54.54	71.14
keychain.ts	69.03	59.72	54.54	71.14	37,70,78,133,164-200,223-253,322
src/storage	100	100	100	100
storage-layer.ts	100	100	100	100
src/types	100	100	100	100
keychain.ts	100	100	100	100
src/utils	65.51	42.85	50	65.45
bech32-address-converter.ts	100	100	100	100
correct-mnemonic.ts	66.66	100	0	100
encode-signature.ts	88.88	80	100	88.88	6
encoding.ts	88.88	0	100	87.5	3
get-hdpath.ts	100	50	100	100	1
init-crypto.ts	66.66	100	0	66.66	12-16
serialize-signdoc.ts	25	0	0	25	5-18,22-23,27
tests	100	100	100	100
mockdata.ts	100	100	100	100