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/coolpix_b700.toml

@@ -0,0 +1,17 @@
+make = "NIKON"
+model = "COOLPIX B700"
+clean_make = "Nikon"
+clean_model = "Coolpix B700"
+color_pattern = "RGGB"
+active_area = [0, 0, 0, 0]
+crop_area = [8, 7, 8, 7]
+hints = ["msb32"]
+
+[cameras.color_matrix]
+A = [1.5847, -0.8464, 0.0823, -0.0966, 0.8876, 0.2491, 0.0778, 0.0498, 0.5707]
+D65 = [1.4387, -0.6014, -0.1299, -0.1357, 0.9975, 0.1616, 0.0467, 0.1047, 0.4744]
+
+[[cameras.modes]]
+mode = "12bit"
+blackpoint = 200
+whitepoint = 4000