Vendor rawler 0.7.2 unmodified

The crate as crates.io publishes it, minus .cargo-ok, its Cargo.lock and
data/testdata (13 MB of sample files only its own tests read). Not yet
routed through [patch.crates-io]; the next commit is the patch.

third_party/rawler-0.7.2/data/cameras/nikon/d500.toml

@@ -0,0 +1,21 @@
+make = "NIKON CORPORATION"
+model = "NIKON D500"
+clean_make = "Nikon"
+clean_model = "D500"
+color_pattern = "RGGB"
+active_area = [0, 0, 0, 0]
+crop_area = [16, 8, 16, 8] # TODO: This camera has Large/Medium/Small format with different crop
+
+[cameras.color_matrix]
+A = [0.9376, -0.4139, -0.0394, -0.4687, 1.2495, 0.2454, -0.0699, 0.1378, 0.7486]
+D65 = [0.8813, -0.321, -0.1036, -0.4703, 1.2868, 0.2021, -0.1054, 0.194, 0.6129]
+
+[[cameras.modes]]
+mode = "14bit"
+#blackpoint = 400
+whitepoint = 15520
+
+[[cameras.modes]]
+mode = "12bit"
+#blackpoint = 100
+whitepoint = 3880