Constant LOD texture mapping

Author: pmconne

extensions/2.0/Vendor/EXT_textureInfo_constant_lod/README.md

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+<!--
+Copyright 2015-2025 The Khronos Group Inc.
+SPDX-License-Identifier: CC-BY-4.0
+-->
+
+# EXT_textureInfo_constant_lod
+
+## Contributors
+
+* Paul Connelly, Bentley Systems, [@pmconne](https://github.com/pmconne)
+
+## Status
+
+Draft
+
+## Dependencies
+
+Written against the glTF 2.0 spec.
+
+## Overview
+
+[Basis](https://www.itwinjs.org/reference/core-common/rendering/texturemapping/texturemapping.constantlodparams).
+
+## Specifying Constant LOD Texture Mapping
+
+
+## glTF Schema Updates
+
+
+## Implementation Notes
+
+
+## JSON Schema
+
+