See merge request !1305

See merge request !1303

Closes #213

See merge request !1302

Closes #191

See merge request !1300

Record the source location of DECLARE_COMPONENT in Python configurables

Closes #203

See merge request !1299

See merge request !1294

instead of collecting partial configurations and merging at the end

instead of processing them after applying ConfigurableUser instances

Closes #192

See merge request !1301

See merge request !1297

See merge request !1292

if set for a component, the configurable class gets the class member
`__declaration_location__`

Change the type of the properties used to specify the input / output locations of {Merging,Splitting}Transformer
from vector-of-string to the more appropriate vector-of-DataObjID

See merge request !1298

Closes #114

See merge request !1296

See merge request !1293

See merge request !1288

See merge request !1291

See merge request !1289

Closes #212

See merge request !1290

Apply the `OrderedSetSemantics` by default to `std::unordered_set` and
`set::set`. This fixes e.g. problems when merging the
ExtraInputs/Outputs properties of algorithms.