magento/graphql-ce#685: Extract logic related to customer from DownloadableGraphQl module into new one

- added composer dependency
- removed some hard dependencies because of DependencyTest bug MC-19635

Author: lenaorobei

app/code/Magento/CustomerDownloadableGraphQl/etc/module.xml

@@ -8,8 +8,6 @@
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
     <module name="Magento_CustomerDownloadableGraphQl" >
         <sequence>
-            <module name="Magento_Catalog"/>
-            <module name="Magento_Downloadable"/>
             <module name="Magento_GraphQl"/>
             <module name="Magento_CatalogGraphQl"/>
             <module name="Magento_DownloadableGraphQl"/>

app/code/Magento/DownloadableGraphQl/etc/module.xml

@@ -8,7 +8,6 @@
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
     <module name="Magento_DownloadableGraphQl" >
         <sequence>
-            <module name="Magento_GraphQl"/>
             <module name="Magento_Catalog"/>
             <module name="Magento_CatalogGraphQl"/>
             <module name="Magento_QuoteGraphQl"/>

composer.json

@@ -147,6 +147,7 @@
         "magento/module-currency-symbol": "*",
         "magento/module-customer": "*",
         "magento/module-customer-analytics": "*",
+        "magento/module-customer-downloadable-graph-ql": "*",
         "magento/module-customer-import-export": "*",
         "magento/module-deploy": "*",
         "magento/module-developer": "*",