feat(indicator): update item pointer

feat(indicator): update item pointer

feat(indicator): update item pointer

feat(indicator): remove indicator copy

add analyzer

change item struct Tag to metadata

Merge branch 'feat/indicator'

# Conflicts:
#	container/container.go
#	go.mod
#	go.sum

fix(strategy): delete unused function

test(broker): test case

feat(indicator): bollinger band