Changed fastNlMeansDenoising and fastNlMeansDenoisingMulti back to sum of sq distances. Moved sq sum of abs distances to fastNlMeansDenoisingAbs and fastNlMeansDenoisingMultiAbs

removed optim module; moved its functionality to core and photo modules; moved drawing functions from core to imgproc. Removed FilterEngine etc. from public API

Removed conflict

Error fix 1

Error fix 2

Error fix 3

Error fix 3

Error fix 4

Error fix 5

Error fix 6

Error fix 7

Error fix 8

Error fix 9

Error fix 10

Error fix 11

Error fix 12

Errors fixed

Removed opencv_extra folder inside opencv folder

Update 1

update 2

Update 3

Update 4

Update 5

update 6

Update 7

Update 8

Update 9

Update 10

Update 11

Update 12

Update 13

Update 14

Update 15

Update 16

Update 17

Update 18

Update 19

Update 20

Update 21

Update 22

Removed Headers

Update 23

Update 24

Update 25

Update 26

Update 27

Update 28

All 3 modules Updated

Both modules added

update1

update1

update4

update3

update4

update4

update5

added test data