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/d2x.toml

@@ -0,0 +1,16 @@
+make = "NIKON CORPORATION"
+model = "NIKON D2X"
+clean_make = "Nikon"
+clean_model = "D2X"
+color_pattern = "RGGB"
+active_area = [0, 0, 8, 0]
+crop_area = [16, 10, 16, 10]
+
+[cameras.color_matrix]
+A = [1.0996, -0.3606, -0.0715, -0.7096, 1.441, 0.2947, -0.046, 0.0487, 0.7018]
+D65 = [1.0231, -0.2768, -0.1254, -0.8302, 1.59, 0.2551, -0.0797, 0.0681, 0.7148]
+
+[[cameras.modes]]
+mode = "12bit"
+blackpoint = 0
+whitepoint = 3880