Support string conversion in ToFloat64 and ToInt64
Support string conversion in ToFloat64 and ToInt64

Change-Id: Iffd432d4af6ebae54376acb15c2d7c71f13871a8
Reviewed-on: https://softwarefactory-project.io/r/5604
Reviewed-by: Sylvain Afchain <b9baee1c2e4cc202620c6529e0c0bd3dbc38b6dc@gmail.com>
Tested-by: Sylvain Afchain <b9baee1c2e4cc202620c6529e0c0bd3dbc38b6dc@gmail.com>
Workflow: Sylvain Afchain <b9baee1c2e4cc202620c6529e0c0bd3dbc38b6dc@gmail.com>

safchain/skydive,safchain/skydive,lebauce/skydive,safchain/skydive,redhat-cip/skydive,skydive-project/skydive,skydive-project/skydive,skydive-project/skydive,lebauce/skydive,safchain/skydive,lebauce/skydive,safchain/skydive,lebauce/skydive,lebauce/skydive,lebauce/skydive,skydive-project/skydive,skydive-project/skydive,redhat-cip/skydive,safchain/skydive,skydive-project/skydive,redhat-cip/skydive,lebauce/skydive,lebauce/skydive,safchain/skydive,safchain/skydive,skydive-project/skydive