40 new seamless metal textures

40 seamless tileable metal textures have been added.

bare-metal-and-plates_0008_0 texture
bare-metal-and-plates_0009_0 texture
bare-metal-and-plates_0016_01 texture
bare-metal-and-plates_0021_0 texture
bare-metal-and-plates_0030_0 texture
bare-metal-and-plates_0032_0 texture
bare-metal-and-plates_0039_0 texture
bare-metal-and-plates_0040_0 texture
bare-metal-and-plates_0041_0 texture
bare-metal-and-plates_0055_0 texture
bare-metal-and-plates_0056_0 texture
bolts-and-seams_0002_0 texture
bolts-and-seams_0033_0 texture
corrugated-metal_0001_0 texture
corrugated-metal_0002_0 texture
corrugated-metal_0003_0 texture
corrugated-metal_0005_0 texture
corrugated-metal_0007_0 texture
corrugated-metal_0009_0 texture
corrugated-metal_0010_0 texture
corrugated-metal_0029_0 texture
corrugated-metal_0030_0 texture
metal-pipes-and-beams_0007_0 texture
painted-metal_0001_0 texture
painted-metal_0002_0 texture
painted-metal_0004_01 texture
painted-metal_0011_0 texture
painted-metal_0016_0 texture
painted-metal_0025_0 texture
painted-metal_0026_0 texture
rusty-metal_0005_0 texture
rusty-metal_0011_0 texture
rusty-metal_0028_0 texture
rusty-metal_0057_0 texture
rusty-metal_0061_0 texture
rusty-metal_0073_0 texture
rusty-metal_0074_0 texture
rusty-metal_0076_05 texture
rusty-metal_0077_0 texture
rusty-metal_0077_0 texture