LP1850555 Angular Item (Copy) Location Select Component

LP1850555 Angular Item (Copy) Location Select Component

<eg-item-location-select .../>

Adds a new item location select component which filters the list of
displayed locations based on a permission-check org or a specific
context org unit.

Values in the selector are decorated with the org unit short name in
parens after the location name to clarify the owning lib.

Sandbox example included.

Signed-off-by: Bill Erickson <berickxx@gmail.com>
Signed-off-by: Jane Sandberg <sandbej@linnbenton.edu>