Add Sample Indicators to answer the RQs

[SahitiSarva]

1. For the Egypt CEM, can we illustrate the fact that economic activity is concentrated in only about 7% of Egypt’s land?
2. Again for the Egypt CEM, in order to detect social conditions and spatial inequality: Can we map neighborhoods with swimming pools, green areas, relatively wider streets; as opposed to areas with more dense buildings and narrower streets?