liblp: Always copy geometry to LpMetadata.

Callers of ParseMetadata must manually copy geometry to the final
LpMetadata structure, which is error-prone. Instead, force callers to
pass geometry to ParseMetadata to ensure it is always propagated.

Bug: N/A
Test: liblp_test gtest

Change-Id: I5b24b9d94ab1857db600c40bf6d3c9d8aaa47368
3 files changed