add documentation for building and installing python wrappers and wheels

Author: Eric Ehlers

tutorials.03.build_windows.md

@@ -34,8 +34,8 @@ in your boost lib directory.
 
 You need to grab the source code for ORE and ORESWIG, e.g:
 
-    git clone --recurse-submodules https://github.com/OpenSourceRisk/Engine.git
-    git clone --recurse-submodules https://github.com/OpenSourceRisk/ORE-SWIG.git
+    git clone --recurse-submodules https://github.com/OpenSourceRisk/Engine.git ore
+    git clone --recurse-submodules https://github.com/OpenSourceRisk/ORE-SWIG.git oreswig
 
 # Environment Variables
 
@@ -111,6 +111,11 @@ Below are the commands to build ORESWIG.
     SET PYTHONPATH=%DEMO_ORE_SWIG_DIR%\OREAnalytics-SWIG\Python\build;%DEMO_ORE_SWIG_DIR%\OREAnalytics-SWIG\Python\build\Release
     python swap.py
 
+When you run example script `ore.py`, it writes to directory `Output` a number
+of output files, including `cube.dat`.  If you have compression enabled, as
+described above, then `cube.dat` is generated in compressed format (zip).  If
+not then `cube.dat` is generated as a flat (plain text) file.
+
 ## Build ORESWIG Using setup.py
 
 ### Build ORESWIG

tutorials.04.build_posix.md

@@ -26,8 +26,8 @@ of `boost::iostreams` is zlib-enabled.  The instructions for compiling
 
 You need to grab the source code for ORE and ORESWIG, e.g:
 
-    git clone --recurse-submodules https://github.com/OpenSourceRisk/Engine.git
-    git clone --recurse-submodules https://github.com/OpenSourceRisk/ORE-SWIG.git
+    git clone --recurse-submodules https://github.com/OpenSourceRisk/Engine.git ore
+    git clone --recurse-submodules https://github.com/OpenSourceRisk/ORE-SWIG.git oreswig
 
 # Environment Variables
 
@@ -102,6 +102,11 @@ Below are the commands to build ORESWIG.
     export LD_LIBRARY_PATH=$DEMO_ORE_DIR/build/OREAnalytics/orea:$DEMO_ORE_DIR/build/OREData/ored:$DEMO_ORE_DIR/build/QuantExt/qle:$DEMO_ORE_DIR/build/QuantLib/ql:$DEMO_BOOST_LIB
     python3 swap.py
 
+When you run example script `ore.py`, it writes to directory `Output` a number
+of output files, including `cube.dat`.  If you have compression enabled, as
+described above, then `cube.dat` is generated in compressed format (.tar.gz).
+If not then `cube.dat` is generated as a flat (plain text) file.
+
 ## Build ORESWIG Using setup.py
 
 ### Build ORESWIG