FINERACT-2282: Support Client filtering by legal form

fineract-core/src/main/java/org/apache/fineract/infrastructure/core/service/SearchParameters.java

@@ -56,6 +56,7 @@ public class SearchParameters {
     private Long categoryId;
     @Getter(AccessLevel.NONE)
     private Boolean isSelfUser;
+    private Integer legalForm;
 
     public Integer getLimit() {
         if (limit == null) {
@@ -128,4 +129,16 @@ public class SearchParameters {
     public boolean hasCategoryId() {
         return this.categoryId != null && this.categoryId != 0;
     }
+
+    public boolean isPerson() {
+        return this.legalForm != null && this.legalForm == 1;
+    }
+
+    public boolean isEntity() {
+        return this.legalForm != null && this.legalForm == 2;
+    }
+
+    public boolean hasLegalForm() {
+        return this.legalForm != null;
+    }
 }

fineract-core/src/main/java/org/apache/fineract/portfolio/client/api/ClientApiConstants.java

@@ -197,7 +197,7 @@ public class ClientApiConstants {
             officeNameParamName, transferToOfficeIdParamName, transferToOfficeNameParamName, hierarchyParamName, imageIdParamName,
             imagePresentParamName, staffIdParamName, staffNameParamName, timelineParamName, groupsParamName, officeOptionsParamName,
             staffOptionsParamName, dateOfBirthParamName, genderParamName, clientTypeParamName, clientClassificationParamName,
-            legalFormParamName, clientNonPersonDetailsParamName, isStaffParamName));
+            legalFormParamName, clientNonPersonDetailsParamName, isStaffParamName, legalFormParamName));
 
     protected static final Set<String> CLIENT_CHARGES_RESPONSE_DATA_PARAMETERS = new HashSet<>(Arrays.asList(chargeIdParamName,
             clientIdParamName, chargeNameParamName, penaltyParamName, chargeTimeTypeParamName, dueAsOfDateParamName,