Merge branch 'feature/three'

Update README.md

Update README.md

Create LICENSE

Merge pull request #8 from 398noe/feature/three

Refactor FFT calculation and result handling

Fix init verticles

Add axis and label

apply for realtime-update

Fix OpenGL shader program initialization and vertex shape creation

update imager program

Add set vertices

set three_imger on plugin editor and update three imager from gl test

Add 3d orientation adn remove unused functions

remove pitch limit, but it might be update camera position

chore: Update GLTest to implement camera rotation and zoom functionality

can change view, but it should be change x, y, and z

Add axis drawing

draw four points with opengl I will write line of axis

Add structs by using gl tutorial, then use gl test cpp

write 3d triangle code, but it doesn't work

rollback opengl 4 to 3

remove unused value

refactor: Update ThreeImager to use OpenGL shader program

Add reload shader and getProjection Matrix function

Remove shader cpp file and add create shaders function

refactor: Update ThreeImager to use OpenGL shader program

fix variable by using namespace

inherit opengl renderer and initialize in three imager