Adding numeric test

build_numerics.sh

 #! /bin/bash
 
-echo "BUILDING NUMERICS"
+echo "RUN numerics test"
+
+source $HOME/openfpm_vars
+
+mpirun -np 1 ./src/numerics
+if [ $? -ne 0 ]; then
+   curl -X POST --data "payload={\"icon_emoji\": \":jenkins:\", \"username\": \"jenkins\"  , \"attachments\":[{ \"title\":\"Error:\", \"color\": \"#FF0000\", \"text\":\"$2 failed to complete the openfpm_pdata test \" }] }" https://hooks.slack.com/services/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
+   exit 1 ;
+fi
+mpirun -np 2 ./src/numerics
+if [ $? -ne 0 ]; then
+   curl -X POST --data "payload={\"icon_emoji\": \":jenkins:\", \"username\": \"jenkins\"  , \"attachments\":[{ \"title\":\"Error:\", \"color\": \"#FF0000\", \"text\":\"$2 failed to complete the openfpm_pdata test \" }] }" https://hooks.slack.com/services/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
+   exit 1 ;
+fi
+mpirun -np 3 ./src/numerics
+if [ $? -ne 0 ]; then
+   curl -X POST --data "payload={\"icon_emoji\": \":jenkins:\", \"username\": \"jenkins\"  , \"attachments\":[{ \"title\":\"Error:\", \"color\": \"#FF0000\", \"text\":\"$2 failed to complete the openfpm_pdata test \" }] }" https://hooks.slack.com/services/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
+   exit 1 ;
+fi
+
 
 curl -X POST --data "payload={\"icon_emoji\": \":jenkins:\", \"username\": \"jenkins\"  , \"attachments\":[{ \"title\":\"Info:\", \"color\": \"#00FF00\", \"text\":\"$2 completed succeffuly the openfpm_numerics test \" }] }" https://hooks.slack.com/services/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