add findbugs status
add findbugs status

gleclaire/findbugs-maven-plugin,hazendaz/findbugs-maven-plugin,gleclaire/findbugs-maven-plugin,gleclaire/findbugs-maven-plugin,hazendaz/findbugs-maven-plugin,hazendaz/findbugs-maven-plugin,hazendaz/spotbugs-maven-plugin,hazendaz/spotbugs-maven-plugin,hazendaz/spotbugs-maven-plugin