Flask-Parameter-Validation v2.3.0

Thanks all for continued project usage, and especially to the new project maintainer @smt5541 for the majority of this update 🙌

Features:

• Add parameter aliases (PR by @summersz)
• Full test suite for future changes (PR by @smt5541)
• Optional JSON schema validation for dict inputs (commit by @smt5541)

Bug fixes:

• Optional parameters broken after last release (PR by @jramseygreen)
• Response message fixes (PR by @kbulygin)
• File min/max length no longer broken (commit by @smt5541)