Update README.md
add obj loader
Merge branch 'master' of github.com:foxking0416/GPU-FinalProject
basic tube function
temp
temp
temp
sky box added - not perfect
add China India SouthKorea country
solve merge confliction
add more countries data
bar charts
updated skybox
temp
temporary solve chrome cache problem
add contries points and flag images
new skybox maps (for different fields of study)
particle update

change from particle size to particle amounts to show the difference
between data
change obj models per study areas

!!! cant remove previous obj
obj unable to remove - fixed!