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/d3300.toml

@@ -0,0 +1,16 @@
+make = "NIKON CORPORATION"
+model = "NIKON D3300"
+clean_make = "Nikon"
+clean_model = "D3300"
+color_pattern = "RGGB"
+active_area = [0, 0, 0, 0]
+crop_area = [8, 8, 8, 8]
+
+[cameras.color_matrix]
+A = [0.9672, -0.4153, 0.0064, -0.412, 1.1852, 0.2571, -0.094, 0.1812, 0.7894]
+D65 = [0.6988, -0.1384, -0.0714, -0.5631, 1.341, 0.2447, -0.1485, 0.2204, 0.7318]
+
+[[cameras.modes]]
+mode = "12bit"
+#blackpoint = 150
+whitepoint = 3880