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/lx1.toml

@@ -0,0 +1,15 @@
+make = "Panasonic"
+model = "DMC-LX1"
+clean_make = "Panasonic"
+clean_model = "DMC-LX1"
+#blackpoint = 0
+whitepoint = 3971
+color_pattern = "RGGB"
+
+[cameras.color_matrix]
+A = [1.2679, -0.6394, -0.0077, -0.651, 1.3697, 0.3128, -0.0364, 0.0551, 0.8614]
+D65 = [1.0704, -0.4187, -0.123, -0.8314, 1.5953, 0.2501, -0.092, 0.0945, 0.8927]
+
+[[cameras.modes]]
+mode = "16:9"
+active_area = [6, 0, 16, 0]