Add support for new 1.3 tgeom and tgeog types

[Davichet-e]

Add TGeometry / TGeography types and unify geo temporal API

What changed

New types

MEOS 1.3 exposes tgeometry and tgeography — arbitrary geometry/geography temporals, not restricted to points. This PR adds full Rust support for both:

• TGeometry / TGeometryInstant / TGeometrySequence / TGeometrySequenceSet
• TGeography / TGeographyInstant / TGeographySequence / TGeographySequenceSet

All spatial methods (trajectory, length, speed, at_point, distance_to_point, nearest_approach_distance, etc.) are available on both types via TGeoTrait.

Unified trait

TPointTrait<const IS_GEODETIC: bool> is replaced by a single TGeoTrait. The const generic was artificial — MEOS uses the same C functions for geodetic and non-geodetic types everywhere except value serialization, which is now handled internally by the trait's one required method:

pub trait TGeoTrait: Temporal {
    fn geo_to_gserialized(geo: Geometry) -> *mut GSERIALIZED;
}

Macro-driven codegen

All four geo type families are now generated by a single macro call each:

impl_tgeo_type!(TGeomPoint, false, tpointinst_make, tgeompoint_in, tgeompoint_from_mfjson);
impl_tgeo_type!(TGeogPoint, true,  tpointinst_make, tgeogpoint_in, tgeogpoint_from_mfjson);
impl_tgeo_type!(TGeometry,  false, tgeoinst_make,   tgeometry_in,  tgeometry_from_mfjson);
impl_tgeo_type!(TGeography, true,  tgeoinst_make,   tgeography_in, tgeography_from_mfjson);

This collapsed ~600 lines of duplicated boilerplate. Adding a new geo type in the future is one line.

Renamed src/temporal/point/ → src/temporal/geo/

The directory and module names now reflect that these types are not point-specific.

Migration

• Replace use meos::TPointTrait with use meos::TGeoTrait
• All method names are unchanged

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Expanded TGeoTrait and STBox API

Wrapped ~80 previously missing MEOS functions:

• Ever/always spatial relations — ever_equal, ever_intersects, ever_contains, ever_covers, ever_touches, ever_within_distance, and their always_* counterparts, each with both a geometry and a tgeo variant
• Geometry/STBox restrictions — at_geom, minus_geom, at_stbox, minus_stbox (returning Option<Self::Enum>)
• Spatial aggregates — centroid, convex_hull, traversed_area
• Temporal spatial relations — contains, covers, disjoint, touches (returning TBool)
• nearest_approach_distance_to_stbox, value_n
• Full set of positional operators on STBox (is_left, is_right, is_above, is_below, is_before, is_after, all is_over_or_*, is_adjacent, overlaps, is_same, is_contained_in)
• Full set of positional operators on TGeoTrait vs both Self::Enum and STBox