MULE-7203: Move ws-proxy from patterns/core into a new web services module

Created mule-module-ws. Moved WSProxy and ws namespace from pattern-core to mule-module-ws. Made pattern-core depend on mule-module-ws so as to keep existing pattern:web-service-proxy element working (using the implementation in mule-module-ws). Moved HttpProxy to mule-transport-http and made mule-module-ws depend on mule-transport-http as WSProxy depends on HttpProxy.
MULE-7203: Move ws-proxy from patterns/core into a new web services module

Added mule-module-ws to the embedded distribution
Merge pull request #260 from mulesoft/MULE-7203

MULE-7203: Move ws-proxy from patterns/core into a new web services module
increasing surefire memory
Merge pull request #261 from mulesoft/INCREASE-SUREFIRE-MEMORY

increasing surefire memory
MULE-6889: Adding test to verify behaviour
MULE-7140 - adding configuration to maven-resources-plugin to include empty directories in the distro
Merge pull request #263 from mulesoft/MULE-7140-FIXING-FULL-DISTRO

MULE-7140 - adding configuration to maven-resources-plugin to include em...
Merge pull request #262 from mulesoft/MULE-6889

MULE-6889: Adding test to verify behaviour
Initial import of work on Web Service Consumer
MULE-7140 - Adding file inside domains folder in distributions so it gets versioned by git. Removing that file from distributions using assembly.xml. Reverting maven-resources-plugin configuration since it is no longer necessary
Merge pull request #264 from mulesoft/MULE-7140-DIRECTORY-DOMAINS

MULE-7140 - Adding file inside domains folder in distributions so it get...
MULE-7198: Build fails due to error downloading dependencies of jBPM module. Fixed repository location since it was moved.
Merge pull request #265 from mulesoft/MULE-7198

MULE-7198: Build fails due to error downloading dependencies of jBPM mod...
MULE-6926: Ignoring flacky test
Merge pull request #266 from mulesoft/MULE-6926

MULE-6926: Ignoring flacky test
MULE-6367: FTP Inbound endpoint fails when reading empty file. Added functional test case. Removed explicit check for empty files.
Merge pull request #267 from mulesoft/MULE-6367

MULE-6367: FTP Inbound endpoint fails when reading empty file. Added fun...
MULE-6926 - Ignore flaky tests QuartzReceiveAndDispatchJobTestCase
Merge pull request #269 from mulesoft/FixFlakyTestsQuartzReceiveAndDispatchJobTestCase

MULE-6926 - Ignore flaky tests QuartzReceiveAndDispatchJobTestCase