feat(api-kit): add ordering props to getPendingTransactions

[dasanra]

What it solves

Resolves #1010

How this PR fixes it

Adds parameters to filter pending transactions using

• nonce
• limit
• offset
• has_confirmations

[coveralls]

Pull Request Test Coverage Report for Build 11348788177

Details

• 7 of 13 (53.85%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.5%) to 76.251%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
packages/api-kit/src/SafeApiKit.ts	7	13	53.85%

Totals
Change from base Build 11347196299:	-0.5%
Covered Lines:	784
Relevant Lines:	961

---

💛 - Coveralls