Moves shared dependencies to SPI

[rchowell]

Description

This sets up a place for shared interfaces and cleans up the partiql-types package. This is a prerequisite to error handling improvements and the shared catalog/identifiers/names from the planner metadata.

Other Information

• Updated Unreleased Section in CHANGELOG: NO
• Any backward-incompatible changes? NO
• Any new external dependencies? NO
• Do your changes comply with the Contributing Guidelines
  and Code Style Guidelines? YES

License Information

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[github-actions]

Conformance comparison report-Cross Engine

	Base (legacy)	eval	+/-
% Passing	92.49%	94.37%	1.87%
✅ Passing	5433	5544	111
❌ Failing	441	331	-110
🔶 Ignored	0	0	0
Total Tests	5874	5875	1
Number passing in both: 5183

Number failing in both: 80

Number passing in legacy engine but fail in eval engine: 251

Number failing in legacy engine but pass in eval engine: 361
⁉️ CONFORMANCE REPORT REGRESSION DETECTED ⁉️
The complete list can be found in GitHub CI summary, either from Step Summary or in the Artifact.
361 test(s) were failing in legacy but now pass in eval. Before merging, confirm they are intended to pass.
The complete list can be found in GitHub CI summary, either from Step Summary or in the Artifact.

Conformance comparison report-Cross Commit-LEGACY

	Base (ad129fd)	ef6ec91	+/-
% Passing	92.49%	92.49%	0.00%
✅ Passing	5433	5433	0
❌ Failing	441	441	0
🔶 Ignored	0	0	0
Total Tests	5874	5874	0
Number passing in both: 5433

Number failing in both: 441

Number passing in Base (ad129fd) but now fail: 0

Number failing in Base (ad129fd) but now pass: 0

Conformance comparison report-Cross Commit-EVAL

	Base (ad129fd)	ef6ec91	+/-
% Passing	94.37%	94.37%	0.00%
✅ Passing	5544	5544	0
❌ Failing	331	331	0
🔶 Ignored	0	0	0
Total Tests	5875	5875	0
Number passing in both: 5544

Number failing in both: 331

Number passing in Base (ad129fd) but now fail: 1

Number failing in Base (ad129fd) but now pass: 1
⁉️ CONFORMANCE REPORT REGRESSION DETECTED ⁉️. The following test(s) were previously passing but now fail:

Click here to see

• Example 6 — Value Coercion, compileOption: LEGACY

The following test(s) were previously failing but now pass. Before merging, confirm they are intended to pass:

Click here to see

• Example 6 — Value Coercion, compileOption: LEGACY

[johnedquinn]

LGTM.