Implemented a geometry document field with a minimal `Geometry` enum.
Now able to add that Geometry from GeoJSON parsed from a JSON document.
Geometry is triangulated if it is a polygon, otherwise it is correctly
encoded as a degenerate triangle if it is a point or a line string.
Write accumulated triangles to a block kd-tree on commit.
Serialize the original `f64` polygon for retrieval from search.
Created a query method for intersection. Query against the memory mapped
block kd-tree. Return hits and original `f64` polygon.
Implemented a merge of one or more block kd-trees from one or more
segments during merge.
Updated the block kd-tree to write to a Tantivy `WritePtr` instead of
more generic Rust I/O.
* compact doc
* add any value type
* pass references when building CompactDoc
* remove OwnedValue from API
* clippy
* clippy
* fail on large documents
* fmt
* cleanup
* cleanup
* implement Value for different types
fix serde_json date Value implementation
* fmt
* cleanup
* fmt
* cleanup
* store positions instead of pos+len
* remove nodes array
* remove mediumvec
* cleanup
* infallible serialize into vec
* remove positions indirection
* remove 24MB limitation in document
use u32 for Addr
Remove the 3 byte addressing limitation and use VInt instead
* cleanup
* extend test
* cleanup, add comments
* rename, remove pub
