jingyi.jia/Thesis-Hector-VR: Ground-based rescue robot simulation with 4 operating modes and test scenarios

Jingyi Jia b4cbb439d9 first commit		2 lat temu
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SeeThru.shader	b4cbb439d9 first commit	2 lat temu
SeeThru.shader.meta	b4cbb439d9 first commit	2 lat temu
Silhouette.shader	b4cbb439d9 first commit	2 lat temu
Silhouette.shader.meta	b4cbb439d9 first commit	2 lat temu