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/lenses/phaseone/phaseone.toml

@@ -0,0 +1,15 @@
+[[lenses]]
+mount = "phaseone"
+key = "Schneider LS 150mm f/3.5"
+model = "150mm LS f/3.5"
+make = "Schneider"
+focal_range = [[150, 1], [150, 1]]
+aperture_range = [[35, 10], [35, 10]]
+
+[[lenses]]
+mount = "phaseone"
+key = "Rodenstock RS 50mm-Ar"
+model = "RS 50mm-Ar"
+make = "Rodenstock"
+focal_range = [[50, 1], [50, 1]]
+aperture_range = [[4, 1], [4, 1]]