Nodes: Add Compare node operations to link drag search menu

Exposes compare operations via rna emums.
This uses the rna enum to build the search list using
named operations linked to socket A.
This also weights the Math Node comparison operations lower
for geometry node trees.

Differential Revision: https://developer.blender.org/D13695

Cleanup: Silence warning for wrong const char comparison

Incorrectly used comparison for empty string.

Reported in chat by @jacqueslucke.

Nodes: Weight drag link search for Math nodes

As @hooglyboogly suggested in D13680, this patch adds weighting
to the search results. Dragging from a vector/rgba socket weights
the Vector Math node higher than a float Math node, and vice versa.

Reviewed By: HooglyBoogly

Differential Revision: https://developer.blender.org/D13691

Fix (unreported): remove menu separators from drag link search

Search was picking up the menu separator entries.
Add check for these which are defined by empty identifier strings.

Nodes: Improve link drag search for Math and Vector Math nodes

Exposes math operations via rna emums.

This uses the rna enum to build the search list.

Differential Revision: https://developer.blender.org/D13680

Nodes: Add vector support to Map Range node

This replaces lost functionality from the old GN Attribute Map Range node.
This also adds vector support to the shader version of the node.

Notes:
This breaks forward compatibility as this node now uses data storage.

Reviewed By: HooglyBoogly, brecht

Differential Revision: https://developer.blender.org/D12760

Nodes: Add vector support to Map Range node

This replaces lost functionality from the old GN Attribute Map Range node.
This also adds vector support to the shader version of the node.

Notes:
This breaks forward compatibility as this node now uses data storage.

Reviewed By: HooglyBoogly, brecht

Differential Revision: https://developer.blender.org/D12760

UI: Add curve handle buttons to CurveMap interface

This patch exposes the vector handle options as buttons
and aligns the UI between CurveMap and CurveProfile more closely.
- CurveMap point editing is on a single row like CurveProfile
- Tools menu is moved to the right hand side on both widgets
- Emboss curve map buttons

Reviewed By: HooglyBoogly

Differential Revision: https://developer.blender.org/D10980

Fix: Geometry Nodes: Math node smoothmax not working

Function arguments were incorrect.

Noted during @simonthommes live stream.

Reviewed By: JacquesLucke

Differential Revision: https://developer.blender.org/D13110

Merge branch 'blender-v3.0-release'