This commit removes unnecessary container size manipulation in yaml
parser. Space reservation is done by dedicated function
reserveBasedOnEstimates, so there is no need to manually resize the
container's size afterwards.
- Ensure that no invalidated iterators/references are used.
- Use push_back() instead of resize(...size()+1).
- Use reserveBasedOnEstimates() instead of reserve(...size()+1)
Signed-off-by: Kacper Nowak <kacper.nowak@intel.com>