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/pentax/k-1.toml

@@ -0,0 +1,12 @@
+make = "RICOH IMAGING COMPANY, LTD."
+model = "PENTAX K-1"
+clean_make = "Pentax"
+clean_model = "K-1"
+#blackpoint = 64
+whitepoint = 16316
+color_pattern = "RGGB"
+active_area = [6, 18, 10, 0]
+crop_area = [14, 28, 18, 10]
+
+[cameras.color_matrix]
+D65 = [0.8596, -0.2981, -0.0639, -0.4202, 1.2046, 0.2431, -0.0685, 0.1424, 0.6122]