Remove need for softlinks in N3 datasources

This caused problems with packaging.

Author: rubensworks

packages/datasource-n3/components/Datasource/NQuads.jsonld

@@ -9,7 +9,7 @@
       "@id": "ldfdn:Datasource/NQuads",
       "@type": "Class",
       "extends": "ldfc:Datasource/Memory",
-      "requireElement": "datasources.NQuadsDatasource",
+      "requireElement": "datasources.N3Datasource",
       "comment": "An NQuadsDatasource fetches data from Turtle/TriG/N-Triples/N-Quads/N3 documents",
       "constructorArguments": {
         "extends": "ldfc:Datasource/Memory#constructorArgumentsObject"

packages/datasource-n3/components/Datasource/NTriples.jsonld

@@ -9,7 +9,7 @@
       "@id": "ldfdn:Datasource/NTriples",
       "@type": "Class",
       "extends": "ldfc:Datasource/Memory",
-      "requireElement": "datasources.NTriplesDatasource",
+      "requireElement": "datasources.N3Datasource",
       "comment": "An NTriplesDatasource fetches data from Turtle/TriG/N-Triples/N-Quads/N3 documents",
       "constructorArguments": {
         "extends": "ldfc:Datasource/Memory#constructorArgumentsObject"

packages/datasource-n3/components/Datasource/Trig.jsonld

@@ -9,7 +9,7 @@
       "@id": "ldfdn:Datasource/Trig",
       "@type": "Class",
       "extends": "ldfc:Datasource/Memory",
-      "requireElement": "datasources.TrigDatasource",
+      "requireElement": "datasources.N3Datasource",
       "comment": "An TrigDatasource fetches data from Turtle/TriG/N-Triples/N-Quads/N3 documents",
       "constructorArguments": {
         "extends": "ldfc:Datasource/Memory#constructorArgumentsObject"

packages/datasource-n3/components/Datasource/Turtle.jsonld

@@ -9,7 +9,7 @@
       "@id": "ldfdn:Datasource/Turtle",
       "@type": "Class",
       "extends": "ldfc:Datasource/Memory",
-      "requireElement": "datasources.TurtleDatasource",
+      "requireElement": "datasources.N3Datasource",
       "comment": "An TurtleDatasource fetches data from Turtle/TriG/N-Triples/N-Quads/N3 documents",
       "constructorArguments": {
         "extends": "ldfc:Datasource/Memory#constructorArgumentsObject"

packages/datasource-n3/index.js

@@ -4,9 +4,5 @@
 module.exports = {
   datasources: {
     N3Datasource: require('./lib/datasources/N3Datasource'),
-    NQuadsDatasource: require('./lib/datasources/NQuadsDatasource'),
-    NTriplesDatasource: require('./lib/datasources/NTriplesDatasource'),
-    TrigDatasource: require('./lib/datasources/TrigDatasource'),
-    TurtleDatasource: require('./lib/datasources/TurtleDatasource'),
   },
 };