SL-18134 Rename Albedo to Base Color to be more consistent with GLTF spec

indra/llprimitive/llgltfmaterial.h

indra/newview/llface.cpp

indra/newview/lllocalgltfmaterials.cpp

indra/newview/lllocalgltfmaterials.h

indra/newview/llmaterialeditor.cpp

indra/newview/llmaterialeditor.h

indra/newview/llpanelface.cpp

indra/newview/lltinygltfhelper.cpp

indra/newview/lltinygltfhelper.h

indra/newview/llviewerobject.cpp

indra/newview/llviewerobject.h

indra/newview/llvovolume.cpp

.../newview/skins/default/xui/en/floater_material_editor.xml

indra/newview/skins/default/xui/en/panel_tools_texture.xml