Increment version number to 6.4.0.9000 (SomaLogic#161)

Author: scheidec

DESCRIPTION

@@ -1,7 +1,7 @@
 Type: Package
 Package: SomaDataIO
 Title: Input/Output 'SomaScan' Data
-Version: 6.4.0
+Version: 6.4.0.9000
 Authors@R: c(
     person(given = "Stu",
            family = "Field",

NEWS.md

@@ -1,3 +1,5 @@
+# SomaDataIO (development version)
+
 # SomaDataIO (6.4.0)
 
 ### New Functions

README.md

@@ -6,7 +6,7 @@
 <!-- badges: start -->
 
 ![GitHub
-version](https://img.shields.io/badge/Version-6.3.0.9000-success.svg?style=flat&logo=github)
+version](https://img.shields.io/badge/Version-6.4.0.9000-success.svg?style=flat&logo=github)
 [![CRAN
 status](http://www.r-pkg.org/badges/version/SomaDataIO)](https://cran.r-project.org/package=SomaDataIO)
 [![Downloads](https://cranlogs.r-pkg.org/badges/SomaDataIO)](https://cran.r-project.org/package=SomaDataIO)