added linux nuspec

LinuxPackage.nuspec

@@ -0,0 +1,20 @@
+<?xml version="1.0"?>
+<package >
+  <metadata>
+    <id>pq2json_linux</id>
+    <version>0.1.15</version>
+    <authors>Evgeney Ryzhyk</authors>
+    <owners>Evgeney Ryzhyk</owners>
+    <license type="expression">MIT</license>
+    <projectUrl>https://github.com/Azure/azure-kusto-parquet-conv</projectUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <description>Parquet to JSON (line delimited) converter tool.</description>
+    <releaseNotes>Updated cslschema handling of Int32, JSON and Decimal types.</releaseNotes>
+    <copyright>Copyright 2020</copyright>
+    <tags></tags>
+    <dependencies></dependencies>
+  </metadata>
+  <files>
+      <file src="target\release\pq2json.exe" target="tools\linux" />
+  </files>
+</package>

Package.nuspec

@@ -2,7 +2,7 @@
 <package >
   <metadata>
     <id>pq2json</id>
-    <version>0.1.13</version>
+    <version>0.1.15</version>
     <authors>Evgeney Ryzhyk</authors>
     <owners>Evgeney Ryzhyk</owners>
     <license type="expression">MIT</license>