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/1s2.toml

@@ -0,0 +1,16 @@
+make = "NIKON CORPORATION"
+model = "NIKON 1 S2"
+clean_make = "Nikon"
+clean_model = "1 S2"
+color_pattern = "RGGB"
+active_area = [0, 0, 0, 0]
+crop_area = [8, 4, 8, 4]
+
+[cameras.color_matrix]
+A = [0.6773, -0.1848, -0.0176, -0.3602, 1.0862, 0.3165, -0.0153, 0.1459, 0.6044]
+D65 = [0.6612, -0.1342, -0.0618, -0.3338, 1.1055, 0.2623, -0.0174, 0.1792, 0.5075]
+
+[[cameras.modes]]
+mode = "12bit"
+blackpoint = 200
+whitepoint = 4095