Rework the persist_data API
Rather than having to run .addDomain() and then .getValue(domain, key),
.setValue(domain, key), etc, now it just works as mappings.
As an example:
setValue(domain, key) -> persist[domain][key] = value
It also arranges things so we can construct objects of this type using any
arbitrary filename/path for the sqlite3 database, rather than being so
tightly bound to the metadata.
(Bitbake rev:
d9e8b8af308ae871efdc8ef0782be30af8c1f894)
Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
