Replace EO Extension with Raster Extension

[philvarner]

Currently, the EO Extension is used to add eo:bands definitions to each asset. However, these are more intended for electromagnetic wavelength bands rather than SAR. Instead, the Raster Extension should be used to give data about the different assets.

Example:

"hh": {
  "href": "s3://sentinel-s1-l1c/GRD/2023/5/3/IW/DH/S1A_IW_GRDH_1SDH_20230503T225422_20230503T225457_048375_05D18E_DB7F/measurement/iw-hh.tiff",
  "type": "image/tiff; application=geotiff; profile=cloud-optimized",
  "title": "HH Data",
  "description": "Actual SAR data that have been processed into an image",
  "raster:bands": [
    {
     "nodata": 0,
     "data_type": "uint16"
    }
],
"roles": [
"data"
]
},

[philvarner]

It looks like neither Planetary Computer and Earth Search are using eo:bands, though PC is advertising the eo extension in sentinel-1-grd items