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/d70.toml

@@ -0,0 +1,16 @@
+make = "NIKON CORPORATION"
+model = "NIKON D70"
+clean_make = "Nikon"
+clean_model = "D70"
+color_pattern = "BGGR"
+active_area = [0, 0, 0, 0]
+crop_area = [15, 7, 17, 7]
+
+[cameras.color_matrix]
+A = [0.9505, -0.4311, 0.022, -0.6712, 1.4078, 0.2902, -0.0318, 0.042, 0.7267]
+D65 = [0.7732, -0.2421, -0.0789, -0.8238, 1.5883, 0.2498, -0.0859, 0.0783, 0.733]
+
+[[cameras.modes]]
+mode = "12bit"
+blackpoint = 0
+whitepoint = 4095