sg_raw: add page (#17075)

Co-authored-by: Wiktor Perskawiec <wiktor@perskawiec.cc>

pages/common/sg_raw.md

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+# sg_raw
+
+> Send arbitrary SCSI command to a connected device.
+> More information: <https://manned.org/sg_raw>.
+
+- Send a command to an optical SCSI device assigned to `sr0` to load the media in its tray:
+
+`sg_raw /dev/sr0 EA 00 00 00 00 01`
+
+- Read data from `IFILE` instead of `stdin`:
+
+`sg_raw {{[-i|--infile]}} {{path/to/IFILE}} {{/dev/sgX}} {{SCSI_command}}`
+
+- Skip the first `LEN` bytes of input data:
+
+`sg_raw {{[-k|--skip]}} {{LEN}} {{/dev/sgX}} {{SCSI_command}}`
+
+- Read `SLEN` bytes of data and send to the device:
+
+`sg_raw {{[-s|--send]}} {{SLEN}} {{/dev/sgX}} {{SCSI_command}}`
+
+- Wait up to `SEC` seconds for `sg_raw` to finish processing:
+
+`sg_raw {{[-t|--timeout]}} {{SEC}} {{/dev/sgX}} {{SCSI_command}}`
+
+- Increase verbosity level by 1:
+
+`sg_raw {{[-v|--verbose]}} {{/dev/sgX}} {{SCSI_command}}`
+
+- Dump returned data in binary form:
+
+`sg_raw {{[-b|--binary]}} {{/dev/sgX}} {{SCSI_command}}`
+
+- Write data received from the specified device to an `OFILE`:
+
+`sg_raw {{[-o|--outfile]}} {{path/to/OFILE}} {{/dev/sgX}} {{SCSI_command}}`