Import image

[mihane-ichinose]

• Added a button Open.. to let user browse which image they want to open in the main GUI window
• Added a new fragment class ImportImage so a window will pop up when Open.. is clicked
• The new window has a textfield to allow user input file path directly or by selecting files from clicking browse.. button on the right, then press OK button to commit
• The file selector popped up from browse.. button now supports *.png, *.bmp, *.jpeg and *.jpg file extension (can be extended later)
• Added try.. except.. block to handle exceptions if file path is invalid or image failed to open

[JoeyTeng]

Should be merged after #3

[danieldeng2]

Please leave a description next time.

could you reformat the code back to kotlin official? thanks.

@hoangvu01 has set that up in gradle.

[mihane-ichinose]

Please leave a description next time.

could you reformat the code back to kotlin official? thanks.

@hoangvu01 has set that up in gradle.

Thanks for telling me, I now applied the Kotlin coding convention. Looks like it doesn't change compare to the previous version (Google Java Style) so I will not make another push.

[hoangvu01]

I dont think you want to merge into master here

[mihane-ichinose]

I dont think you want to merge into master here

Ohf... is there a way I can change the branch I merge to? Or else I'm gonna cancel this PR and open another one

[mihane-ichinose]

No worry I found the setting..