Extract tables from PDF to CSV using Tabula (#2312)

* Add Tabula dependency and exclude slf4j-simple

- Add tabula-java dependency to extract tables into CSV.
- Exclude slf4j-simple due to Logback

* Add a flexible CSVWriter

- Add FlexibleCSVWriter which extends CSVWriter to pass a custom CSVFormat, as CSVWriter's parameterized constructor (that allows changing CSVFormat) is protected.

* Use Tabula in extracting tables from PDF

- Use Tabula in extracting tables from PDF instead of the existing implementation

* Delete PDFTableStripper as It is unneeded

- Delete PDFTableStripper as It is unneeded as Tabula-Java is used instead.

* Use correct class in ExtractCSVController logger

* Exclude gson and bcprov-jdk15on dependencies from tabula

- Exclude gson and bcprov-jdk15on from tabula-java due to detected security vulnerabilities.

src/main/java/stirling/software/SPDF/pdf/FlexibleCSVWriter.java

@@ -0,0 +1,16 @@
+package stirling.software.SPDF.pdf;
+
+import org.apache.commons.csv.CSVFormat;
+
+import technology.tabula.writers.CSVWriter;
+
+public class FlexibleCSVWriter extends CSVWriter {
+
+    public FlexibleCSVWriter() {
+        super();
+    }
+
+    public FlexibleCSVWriter(CSVFormat csvFormat) {
+        super(csvFormat);
+    }
+}