Centralized query specs and refreshed feed docs

Jan 14, 2022

Shipped8 commits+371−862

Added a central query reference and project-specific docs — We added a new `dataSpecs.json` file to make supported query types, inputs, and outputs easier to find, along with a new **Project Specific** query category and documentation for `DivaProtocolPolygon`.
Updated query definitions and encoding details — Query descriptions and examples were updated to match the current format, including clearer encoding guidance and unpacked output values for several DataSpecs queries.

Documentation

Updated the README to explain QueryType, Query Descriptor, QueryData, and QueryID in simpler terms.
Added guidance for when to add a new data feed to an existing query type versus creating a brand-new type.
Added a link to the Query Builder tool for creating query requests more easily.
Expanded the Spot Price examples with clearer asset and currency values.
Added a dedicated LegacyRequest guide with the supported legacy request IDs.
Renamed and refreshed the Diva Protocol documentation to better match the current query format.
Reorganized the docs into a new `types/` structure and removed older legacy and pricing pages.
Clarified naming rules so new types use camel-case and parameters are entered in lowercase.

API

Added `dataSpecs.json` with structured definitions for LegacyRequest, SpotPrice, and DivaProtocolPolygon query types.
Updated query ABI definitions for several outputs to mark values as unpacked.
Clarified that query descriptors are ABI-style strings and query data is built from encoded query parameters.

Breaking Changes

Documentation links and file locations changed as part of the new folder structure, so older README paths may no longer work.

8 commits+371-862