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/1v2.toml

@@ -0,0 +1,16 @@
+make = "NIKON CORPORATION"
+model = "NIKON 1 V2"
+clean_make = "Nikon"
+clean_model = "1 V2"
+color_pattern = "RGGB"
+active_area = [0, 0, 0, 0]
+crop_area = [6, 6, 6, 6]
+
+[cameras.color_matrix]
+A = [0.692, -0.1829, 0.0018, -0.2514, 0.9725, 0.3272, 0.0146, 0.1316, 0.5566]
+D65 = [0.6588, -0.1305, -0.0693, -0.3277, 1.0987, 0.2634, -0.0355, 0.2016, 0.5106]
+
+[[cameras.modes]]
+mode = "12bit"
+blackpoint = 0
+whitepoint = 4095