[#26] Added GLTF files and setup git lfs

.gitattributes

projects/first_mesh/resources/cube/boards2_vcyc_jpg.jpg

projects/first_mesh/resources/cube/cube.bin

projects/first_mesh/resources/cube/cube.blend

projects/first_mesh/resources/cube/cube.blend1

projects/first_mesh/resources/cube/cube.glb

projects/first_mesh/resources/cube/cube.gltf

projects/first_mesh/resources/triangle/Triangle.bin

projects/first_mesh/resources/triangle/Triangle.blend

projects/first_mesh/resources/triangle/Triangle.glb

projects/first_mesh/resources/triangle/Triangle.gltf

projects/first_mesh/src/main.cpp