Add missing info for Jang and Bansa, add photos of Cherry and Betty

[SimonLarsen]

• Add missing name and gender for Bansa
• Add photo of Bansa from Punta Verde IG
• Add missing death date for Jang
• Add photos of Cherry and Betty from Manor Wildlife Park IG

[wwoast]

This looks great. I can't wait to see these new pandas :heart: Thank you Simon!