Add HOME sprites

Large images (512x512) in pokemon/home
Small images (128x128) in pokemon/home/small

Downloaded from HOME servers (with help from edcrfv)
Extracted and converted to PNG with AssetStudio 0.14.38
Optimized with optipng and advdef.

Note that the sRGB, gAMA, and pHYs chunks have been stripped. AssetStudio adds
them when you export textures, but as far as i can tell it isn't intentional -
i think it's just something .NET does by default. I don't know what colorspace
the Switch uses, but i doubt it's whatever .NET's default is. For consistency
with our other sprites, and to save a few bytes, i decided to strip them. Can
always add them back if necessary.

    File: Texture2D/cap0000_f00_s0.png (51271 bytes)
      chunk IHDR at offset 0x0000c, length 13
        512 x 512 image, 32-bit RGB+alpha, non-interlaced
      chunk sRGB at offset 0x00025, length 1
        rendering intent = perceptual
      chunk gAMA at offset 0x00032, length 4: 0.45455
      chunk pHYs at offset 0x00042, length 9: 3779x3779 pixels/meter (96 dpi)
      chunk IDAT at offset 0x00057, length 51164
        zlib: deflated, 32K window, maximum compression
      chunk IEND at offset 0x0c83f, length 0
    No errors detected in Texture2D/cap0000_f00_s0.png (6 chunks, 95.1% compression).