build(tgbot-gen): Changes and additions required to generate the API client with auth (cookie)

I use a standard set of templates, changes are made in api-header.mustache and api-source.mustache. Their _old versions contain the originals. Additions are necessary for the header argument in the generated functions so that you can authenticate using cookies.

api/_build/my-cpp-templates/cpp-restsdk/httpcontent-source.mustache

@@ -0,0 +1,74 @@
+{{>licenseInfo}}
+#include "{{packageName}}/HttpContent.h"
+
+{{#modelNamespaceDeclarations}}
+namespace {{this}} {
+{{/modelNamespaceDeclarations}}
+
+HttpContent::HttpContent()
+{
+}
+
+HttpContent::~HttpContent()
+{
+}
+
+utility::string_t HttpContent::getContentDisposition() const
+{
+    return m_ContentDisposition;
+}
+
+void HttpContent::setContentDisposition( const utility::string_t & value )
+{
+    m_ContentDisposition = value;
+}
+
+utility::string_t HttpContent::getName() const
+{
+    return m_Name;
+}
+
+void HttpContent::setName( const utility::string_t & value )
+{
+    m_Name = value;
+}
+
+utility::string_t HttpContent::getFileName() const
+{
+    return m_FileName;
+}
+
+void HttpContent::setFileName( const utility::string_t & value )
+{
+    m_FileName = value;
+}
+
+utility::string_t HttpContent::getContentType() const
+{
+    return m_ContentType;
+}
+
+void HttpContent::setContentType( const utility::string_t & value )
+{
+    m_ContentType = value;
+}
+
+std::shared_ptr<std::istream> HttpContent::getData() const
+{
+    return m_Data;
+}
+
+void HttpContent::setData( std::shared_ptr<std::istream> value )
+{
+    m_Data = value;
+}
+
+void HttpContent::writeTo( std::ostream& stream )
+{
+    m_Data->seekg( 0, m_Data->beg );
+    stream << m_Data->rdbuf();
+}
+
+{{#modelNamespaceDeclarations}}
+}
+{{/modelNamespaceDeclarations}}