CheckBasicStyle: Check number of empty lines between functions (#4267)

Add check for number of empty lines between functions and fix the corresponding failures

src/OSSupport/Event.cpp

@@ -62,6 +62,7 @@ void cEvent::Set(void)
 
 
 
+
 void cEvent::SetAll(void)
 {
 	{

src/OSSupport/File.cpp

@@ -213,7 +213,6 @@ long cFile::Seek (int iPosition)
 
 
 
-
 long cFile::Tell (void) const
 {
 	ASSERT(IsOpen());

src/OSSupport/Network.h

@@ -29,7 +29,6 @@ typedef std::shared_ptr<cX509Cert> cX509CertPtr;
 
 
 
-
 /** Interface that provides the methods available on a single TCP connection. */
 class cTCPLink
 {

src/OSSupport/TCPLinkImpl.cpp

@@ -235,7 +235,6 @@ void cTCPLinkImpl::Close(void)
 
 
 
-
 AString cTCPLinkImpl::StartTLSClient(
 	cX509CertPtr a_OwnCert,
 	cCryptoKeyPtr a_OwnPrivKey

src/OSSupport/WinStackWalker.cpp

@@ -715,6 +715,7 @@ WinStackWalker::WinStackWalker(DWORD dwProcessId, HANDLE hProcess)
 
 
 
+
 WinStackWalker::WinStackWalker(int options, LPCSTR szSymPath, DWORD dwProcessId, HANDLE hProcess)
 {
 	this->m_options = options;