[ADD] various: add missing icons for website apps

addons/website_crm/static/description/icon.png

...ns/website_crm_partner_assign/static/description/icon.png

addons/website_customer/static/description/icon.png

addons/website_event_questions/static/description/icon.png

addons/website_event_sale/static/description/icon.png

addons/website_event_track/static/description/icon.png

addons/website_forum_doc/static/description/icon.png

addons/website_gengo/static/description/icon.png

addons/website_hr/static/description/icon.png

addons/website_hr_recruitment/static/description/icon.png

addons/website_livechat/static/description/icon.png

addons/website_mail_channel/static/description/icon.png

addons/website_membership/static/description/icon.png

addons/website_partner/static/description/icon.png

addons/website_payment/static/description/icon.png

addons/website_portal/static/description/icon.png

addons/website_portal_sale/static/description/icon.png

addons/website_quote/static/description/icon.png

.../website_rating_project_issue/static/description/icon.png

addons/website_sale_delivery/static/description/icon.png