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.

build.gradle

@@ -203,6 +203,13 @@ dependencies {
         exclude group: "commons-logging", module: "commons-logging"
     }
 
+    // https://mvnrepository.com/artifact/technology.tabula/tabula
+    implementation ('technology.tabula:tabula:1.0.5')  {
+        exclude group: "org.slf4j", module: "slf4j-simple"
+        exclude group: "org.bouncycastle", module: "bcprov-jdk15on"
+        exclude group: "com.google.code.gson", module: "gson"
+    }
+
     implementation 'org.apache.pdfbox:jbig2-imageio:3.0.4'
 
     implementation "org.bouncycastle:bcprov-jdk18on:$bouncycastleVersion"