Add: Service caller

See merge request !72

1. Add: Service caller, calls a service by name from bl

Roshanp fast http changes

See merge request !71

Multipart removal + global Config mutex lock

See merge request !70

cache mdl get all items added

See merge request !69

Core dev bto c

See merge request !68

bug fixes for transaction

See merge request !67

Revert "transaction in normal service"

See merge request !66

This reverts commit 5571f2a3