G-REG search does not work with special characters

[saranki]

Description:
Some searches do not work with special characters like "/", ")".
An example is the File artifact has value M/M_M) in the Notes fields. Perform a search on value M/M_M) from the File search menu - no matches. If you use quotes around the search value it works like "M/M_M)"

Affected Product Version:
wso2greg-5.3.0

Steps to reproduce:

1. Created a file in the Publisher
2. Added note with special characters, Test-M/M_M).
3. When we searched for M/M_M) and Test-M/M_M) we didn't get any output.
   Furthermore, we also got the following error message in the wso2carbon.log file.

[2020-06-01 20:19:48,898] ERROR {org.wso2.carbon.registry.indexing.service.ContentBasedSearchService} -  Invalid Search Query, query contains invalid characters
org.apache.solr.common.SolrException: org.apache.solr.search.SyntaxError: Cannot parse 'overview_name_s:*m/m_m)* OR *m/m_m)*': Encountered " ")" ") "" at line 1, column 22.
Was expecting one of:
    <EOF> 
    <AND> ...
    <OR> ...
    <NOT> ...
    "+" ...
    "-" ...
    <BAREOPER> ...
    "(" ...
    "*" ...
    "^" ...
    <QUOTED> ...
    <TERM> ...
    <FUZZY_SLOP> ...
    <PREFIXTERM> ...
    <WILDTERM> ...
    <REGEXPTERM> ...
    "[" ...
    "{" ...
    <LPARAMS> ...
    <NUMBER> ...
.
.
.
Caused by: org.apache.solr.search.SyntaxError: Cannot parse 'overview_name_s:*m/m_m)* OR *m/m_m)*': Encountered " ")" ") "" at line 1, column 22.
Was expecting one of:
    <EOF> 
    <AND> ...
    <OR> ...
    <NOT> ...
    "+" ...
    "-" ...
    <BAREOPER> ...
    "(" ...
    "*" ...
    "^" ...
    <QUOTED> ...
    <TERM> ...
    <FUZZY_SLOP> ...
    <PREFIXTERM> ...
    <WILDTERM> ...
    <REGEXPTERM> ...
    "[" ...
    "{" ...
    <LPARAMS> ...
    <NUMBER> ...
    
	at org.apache.solr.parser.SolrQueryParserBase.parse(SolrQueryParserBase.java:155)
	at org.apache.solr.search.LuceneQParser.parse(LuceneQParser.java:50)
	at org.apache.solr.search.QParser.getQuery(QParser.java:141)
	at org.apache.solr.handler.component.QueryComponent.prepare(QueryComponent.java:203)
	... 114 more
Caused by: org.apache.solr.parser.ParseException: Encountered " ")" ") "" at line 1, column 22.