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/panasonic/lx2.toml

@@ -0,0 +1,15 @@
+make = "Panasonic"
+model = "DMC-LX2"
+clean_make = "Panasonic"
+clean_model = "DMC-LX2"
+#blackpoint = 0
+whitepoint = 3986
+color_pattern = "BGGR"
+
+[cameras.color_matrix]
+A = [0.9781, -0.4779, 0.0376, -0.4711, 1.1427, 0.3777, -0.073, 0.1393, 0.7137]
+D65 = [0.8047, -0.281, -0.0624, -0.6449, 1.3519, 0.3272, -0.1701, 0.2146, 0.705]
+
+[[cameras.modes]]
+mode = "16:9"
+active_area = [4, 0, 38, 3]