Some fixing in noetic

[cyy280113999]

error: ‘setw’ is not a member of ‘std’; did you mean ‘set’?
in src/rviz_cloud_annotation/src/rviz_cloud_annotation_points.h add
#include

error: ‘CV_LOAD_IMAGE_COLOR’ was not declared in this scope
in src/rviz_cloud_annotation/src/rviz_cloud_annotation_plugin.h add
#include "opencv2/imgcodecs/legacy/constants_c.h"

[Anutlet]

error: ‘setw’ is not a member of ‘std’; did you mean ‘set’? in src/rviz_cloud_annotation/src/rviz_cloud_annotation_points.h add #include

error: ‘CV_LOAD_IMAGE_COLOR’ was not declared in this scope in src/rviz_cloud_annotation/src/rviz_cloud_annotation_plugin.h add #include "opencv2/imgcodecs/legacy/constants_c.h"

first error:add #include <***> // iomanip disappear?