Attempt to address HGU parsing issues

1. I've replaced all "HsapDv..." ids with "CS.." ids.

2. I've added Namespace definitions to 6 EHDAA2 terms - currently
missing from these terms, and should be "namespace:
human_developmental_anatomy"

3. I've removed "created-by" & "created_date" tags from some terms, as
they're not needed (redundant, as Git does this job anyway)

4. There are 5 Obsolete terms, which I've deleted, as again, they're
not needed (redundant, as Git does this job anyway)

5. I've added "relationship: starts_at CS01 ! CS01" & "relationship:
ends_at CS20 ! CS20" to ALL "AEO", "CL" and "CARO" terms, as all terms
must have a start and end - I realise that these are "different" types
of term to "EHDAA2" terms, and starts and ends might not make
ontological sense for them anyway, but in order to get through the
rules in my parser they must be present; I will add extra processing to
my Parser to exempt these terms, if required?

6. There are 11 "EHDAA2" terms without start and ends - I didn't feel
biologically qualified to guess the start and ends for these!
EHDAA2:0004046, EHDAA2:0004727, EHDAA2:0004528, EHDAA2:0003429,
EHDAA2:0003437, EHDAA2:0003438, EHDAA2:0003433, EHDAA2:0003434,
EHDAA2:0003432, EHDAA2:0003430, EHDAA2:0003441

7. I have assumed "EHDAA2:0000000" is the Root term for the ontology.

8. Term "AEO:000020" is only 6 digits long - I expect 7 digits

9. Term "AEO:0000111" is the only term in the ontology that uses the
"surrounds" relationship - this is a new relationship type to the
parser, as it only knows about: "derives_from", "develops_from",
"located_in",,"develops_in", "disjoint_from", "attached_to",
"has_part", "connected_to" & "part_of" - shall I add it to the list of
known and correct relationship types?