Work around reexport issue in libraries (#2121)

Works around #1955 in the libraries we publish by reexporting the items
under an alias. This change should make no difference to the intended
public API of the library.

Author: minestarks

Diff for: library/fixed_point/src/Main.qs

@@ -1,4 +1,4 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-export Init.PrepareFxP, Measurement.MeasureFxP, Reciprocal.ComputeReciprocalFxP, Types.FixedPoint;
+export Init.PrepareFxP as PrepareFxP, Measurement.MeasureFxP as MeasureFxP, Reciprocal.ComputeReciprocalFxP as ComputeReciprocalFxP, Types.FixedPoint as FixedPoint;

Diff for: library/rotations/src/Main.qs

@@ -1,4 +1,4 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-export HammingWeightPhasing.HammingWeightPhasing;
+export HammingWeightPhasing.HammingWeightPhasing as HammingWeightPhasing;