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/olympus/e-400.toml

@@ -0,0 +1,13 @@
+make = "OLYMPUS IMAGING CORP."
+model = "E-400"
+clean_make = "Olympus"
+clean_model = "E-400"
+blackpoint = 95
+whitepoint = 4095
+color_pattern = "GRBG"
+active_area = [0, 0, 0, 0]
+crop_area = [44, 50, 76, 54]
+
+[cameras.color_matrix]
+A = [0.7384, -0.2887, 0.0762, -0.6219, 1.3713, 0.2768, -0.1789, 0.2616, 0.8961]
+D65 = [0.6169, -0.1482, -0.0021, -0.7107, 1.476, 0.2536, -0.2904, 0.3581, 0.8568]