[EngCom] Public Pull Requests - 2.2-develop

Accepted Public Pull Requests:
 - magento/magento2#12730: 12713 (by @EfremovaVI)
 - magento/magento2#12743: #9453 - ported down c2e5d77a9516c8305585e819c2f0a0629648cc14 (by @strell)
 - magento/magento2#12747: magento/magento2#9720 Menu item dependencies (dependsOnModule, depend… (by @hannassy)
 - magento/magento2#12786: Fix typo in SINGLE_PRODUCT_LAYOUT_HANLDE (by @aschrammel)
 - magento/magento2#12767: magento/magento2#12699: Multiselect Attribute is not saved (by @awarche)


Fixed GitHub Issues:
 - magento/magento2#12713: Currency symbol overlaps entered attribute option's price while creating Configurable Product (reported by @alena-marchenko) has been fixed in magento/magento2#12730 by @EfremovaVI in 2.2-develop branch
   Related commits:
     1. 370e526d
     2. 5e43f848
     3. ff7029f2

 - magento/magento2#9453: Reopened: '?SID' in URL even if disabled (reported by @hostep) has been fixed in magento/magento2#12743 by @strell in 2.2-develop branch
   Related commits:
     1. 38720ea0

 - magento/magento2#9720: Menu item dependencies (dependsOnModule, dependsOnConfig) are broken (reported by @mam08ixo) has been fixed in magento/magento2#12747 by @hannassy in 2.2-develop branch
   Related commits:
     1. ddf6c9fc