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/300d.toml

@@ -0,0 +1,25 @@
+# CRW
+make = "Canon"
+model = "Canon EOS 300D DIGITAL"
+clean_make = "Canon"
+clean_model = "EOS 300D"
+
+model_aliases = [
+  ["Canon EOS 300D Digital", "EOS 300D"],
+  ["Canon EOS DIGITAL REBEL", "EOS Digital Rebel"],
+  ["Canon EOS REBEL", "EOS Rebel"],
+  ["Canon EOS Kiss Digital", "EOS Kiss Digital"],
+  ["Canon EOS Kiss", "EOS Kiss"],
+]
+
+whitepoint = 4000
+color_pattern = "RGGB"
+active_area = [64,12,0,0]
+blackareav = [0,60]
+
+[cameras.params]
+wb_offset = 13
+
+[cameras.color_matrix]
+A = [0.912, -0.3127, -0.0453, -0.6868, 1.4138, 0.3011, -0.1708, 0.2368, 0.9501]
+D65 = [0.825, -0.2044, -0.1127, -0.8092, 1.5606, 0.2664, -0.2893, 0.3453, 0.8348]