Move meshes and models from drake to drake_models

allegro_hand_description/LICENSE.TXT

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+This folder contains a model of the Allegro hand. The files were originally
+taken from
+https://github.com/felixduvallet/allegro-hand-ros/tree/master/allegro_hand_description,SHA c414ffb.
+The original license for these files is BSD, expressed in
+http://wiki.ros.org/allegro_hand_ros
+
+Since obtaining the model files from the above-mentioned source, they were
+substantially modified for use by Drake. For example, the original STL mesh
+files were converted to OBJ files, and various inertia properties, motor
+damping and motor effort values were modified. Our changes are covered by
+Drake's license terms (see LICENSE.TXT in Drake's root folder).

allegro_hand_description/meshes/README.txt

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+The OBJ files in this folder were converted from STL using the Open Asset
+Import Library (through http://www.greentoken.de/onlineconv/) and then
+subsequently tweaked; simply reconverting from source will not reproduce these
+exact files. The input STL files came from the manufacturer (https://github.com
+simlabrobotics/allegro_hand_ros/tree/master/allegro_hand_description/meshes).
+The names of the meshes (including the .0 substrings) mirror the original
+files as closely as possible to facilitate future mapping between STL and OBJ
+files.

allegro_hand_description/meshes/allegro.mtl

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+# File produced by Open Asset Import Library (http://www.assimp.sf.net)
+# (assimp v3.1.187496374)
+
+newmtl AluminumBodyMaterial
+Kd 0.1 0.1 0.1
+Ka 0.05 0.05 0.05
+Ks 0.45 0.45 0.45
+illum 2
+
+newmtl SiliconeFingerTip
+Kd 1 1 1
+Ka 1 1 1
+Ks 1 1 1
+illum 1