[circle-resizer] Resolve warning of operator<< for Shape

[mbencer]

This commit resolves warning "circle_resizer::operator<< has not been declared within ‘circle_resizer’"

ONE-DCO-1.0-Signed-off-by: Mateusz Bencer m.bencer@partner.samsung.com

Draft: #14727

[mbencer]

now we have:

/home/m.bencer/workspace/ONE_fork/compiler/circle-resizer/src/Shape.cpp:86:15: warning: ‘std::ostream& circle_resizer::operator<<(std::ostream&, const circle_resizer::Shape&)’ has not been declared within ‘circle_resizer’
   86 | std::ostream &circle_resizer::operator<<(std::ostream &os, const Shape &shape)
      |               ^~~~~~~~~~~~~~
In file included from /home/m.bencer/workspace/ONE_fork/compiler/circle-resizer/src/Shape.cpp:17:
/home/m.bencer/workspace/ONE_fork/compiler/circle-resizer/src/../include/Shape.h:91:24: note: only here as a ‘friend’
   91 |   friend std::ostream &operator<<(std::ostream &os, const Shape &shape);

[jinevening]

LGTM