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/800d.toml

@@ -0,0 +1,19 @@
+make = "Canon"
+model = "Canon EOS 800D"
+clean_make = "Canon"
+clean_model = "EOS 800D"
+
+model_aliases = [
+  ["Canon EOS REBEL T7i", "EOS Rebel T7i"],
+  ["Canon EOS Rebel T7i", "EOS Rebel T7i"],
+  ["Canon EOS Kiss X9i", "EOS Kiss X9i"],
+]
+
+color_pattern = "RGGB"
+blackareav = [0, 250]
+blackareah = [0, 30]
+active_area = [264, 34, 0, 0]
+
+[cameras.color_matrix]
+A = [0.7539, -0.1435, -0.0601, -0.3828, 1.0863, 0.3428, -0.042, 0.1357, 0.6196]
+D65 = [0.697, -0.0512, -0.0968, -0.4425, 1.2161, 0.2553, -0.0739, 0.1982, 0.5601]