[Props] Implement load properties

[Props] Implement load properties

This patch implement `load_properties` which helps loading properties
for a tuple of properties.

Please note that `getKeyVal` is taken from `parse_util` because there is
a build option issue with android build

**Self evaluation:**
1. Build test: [X]Passed [ ]Failed [ ]Skipped
2. Run test: [X]Passed [ ]Failed [ ]Skipped

Signed-off-by: Jihoon Lee <jhoon.it.lee@samsung.com>