FastR Grid: implement 'bounds' versions of rectangle, points, and circle

...com/oracle/truffle/r/library/fastrGrid/EdgeDetection.java

.../truffle/r/library/fastrGrid/FastRGridExternalLookup.java

...src/com/oracle/truffle/r/library/fastrGrid/GridUtils.java

...y/src/com/oracle/truffle/r/library/fastrGrid/LCircle.java

...com/oracle/truffle/r/library/fastrGrid/LCircleBounds.java

...c/com/oracle/truffle/r/library/fastrGrid/LLocnBounds.java

...ary/src/com/oracle/truffle/r/library/fastrGrid/LRect.java

...c/com/oracle/truffle/r/library/fastrGrid/LRectBounds.java

...rary/src/com/oracle/truffle/r/library/fastrGrid/Size.java

...m/oracle/truffle/r/library/fastrGrid/TransformMatrix.java

...ry/src/com/oracle/truffle/r/library/fastrGrid/fastrGrid.R

mx.fastr/copyrights/overrides