Vertex-protocol

What's Changed
* Add cancel product orders execute response by clarkohw in https://github.com/vertex-protocol/vertex-python-sdk/pull/18
* fix: default order nonce by yruej301 in https://github.com/vertex-protocol/vertex-python-sdk/pull/38
* bump: v.1.1.6 by yruej301 in https://github.com/vertex-protocol/vertex-python-sdk/pull/39
* feat: symbols query by yruej301 in https://github.com/vertex-protocol/vertex-python-sdk/pull/40
* Add order digest to place order response by clarkohw in https://github.com/vertex-protocol/vertex-python-sdk/pull/41


**Full Changelog**: https://github.com/vertex-protocol/vertex-python-sdk/compare/v1.1.5...v1.1.6

What's Changed
* fix: to_x18 by yruej301 in https://github.com/vertex-protocol/vertex-python-sdk/pull/35
* bump: v1.1.5 by yruej301 in https://github.com/vertex-protocol/vertex-python-sdk/pull/36


**Full Changelog**: https://github.com/vertex-protocol/vertex-python-sdk/compare/v1.1.4...v1.1.5

What's Changed
* feat: referral program by yruej301 in https://github.com/vertex-protocol/vertex-python-sdk/pull/34


**Full Changelog**: https://github.com/vertex-protocol/vertex-python-sdk/compare/v1.1.3...v1.1.4

What's Changed
* fix: Add utc timezone to order nonce by yruej301 in https://github.com/vertex-protocol/vertex-python-sdk/pull/30
* bump: v1.1.3 by yruej301 in https://github.com/vertex-protocol/vertex-python-sdk/pull/31


**Full Changelog**: https://github.com/vertex-protocol/vertex-python-sdk/compare/v1.1.2...v1.1.3

What's Changed
* fix: order nonce by yruej301 in https://github.com/vertex-protocol/vertex-python-sdk/pull/28
* bump: v1.1.2 by yruej301 in https://github.com/vertex-protocol/vertex-python-sdk/pull/29


**Full Changelog**: https://github.com/vertex-protocol/vertex-python-sdk/compare/v1.1.1...v1.1.2

**Full Changelog**: https://github.com/vertex-protocol/vertex-python-sdk/compare/v1.1.0...v1.1.1