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/canon/d60.toml

@@ -0,0 +1,16 @@
+# CRW
+make = "Canon"
+model = "Canon EOS D60"
+clean_make = "Canon"
+clean_model = "EOS D60"
+whitepoint = 4000
+color_pattern = "RGGB"
+blackareav = [0,60]
+active_area = [64, 12, 0, 0]
+
+[cameras.params]
+wb_offset = 1
+
+[cameras.color_matrix]
+A = [0.6385, -0.1668, -0.0631, -0.6948, 1.3734, 0.3595, -0.1629, 0.223, 0.896]
+D65 = [0.6211, -0.1358, -0.0896, -0.8557, 1.5766, 0.3012, -0.3001, 0.3507, 0.8567]