Update ROAR-Sim with ROAR-Decal#23

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zhenjiasun wants to merge 3 commits intomasterfrom

Commits on Sep 5, 2020

git ignore updated
wuxiaohua1011
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Commits on Sep 11, 2020

replace ROAR-Sim with ROAR-Decal
zhenjiasun
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"update ROAR-Sim with ROAR-Decal"Merge branch 'roar-sim-temp' of https://github.com/augcog/ROAR-DeCal into roar-sim-temp
zhenjiasun
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