Adjust createBoundCRSToWGS84IfPossible() and operation filtering (for POSGAR 2007 to WGS84 issues) (fixes #2356)

2020-09-17T16:36:22+00:00

- We make createBoundCRSToWGS84IfPossible() more restrictive. If there are more
  than one Helmert transformation from the CRS to WGS 84 covering the area of
  use of the CRS, we do not create a BoundCRS / +towgs84
- In createOperations() filtering, we are less aggressive in discarding operations
  that have the same area of use but worse accuracy. We do it only if they involve
  more transformation steps.

We now get:
```
$ projinfo EPSG:5340 -o PROJ
PROJ.4 string:
+proj=longlat +ellps=GRS80 +no_defs +type=crs

$ projinfo -s EPSG:5340 -t EPSG:4326 --spatial-test intersects --summary
Candidate operations found: 2
EPSG:9264, POSGAR 2007 to WGS 84 (2), 0.5 m, Argentina
EPSG:5351, POSGAR 2007 to WGS 84 (1), 1.0 m, Argentina
```

Remove proj_def.dat (fixes #201)

2018-12-27T10:03:14+00:00

Rename test/old/ to test/cli/ to better reflect their nature

2018-12-01T18:15:48+00:00

PROJ/test/cli/proj_outIGNF.dist, branch backport-3082-to-9.0

Adjust createBoundCRSToWGS84IfPossible() and operation filtering (for POSGAR 2007 to WGS84 issues) (fixes #2356)

Remove proj_def.dat (fixes #201)

Rename test/old/ to test/cli/ to better reflect their nature