Changes to Search and browse available artworks

the response property items/items/priceUSD became nullable for the status 200

for the query request parameter limit, the min was set to 1.00

for the query request parameter maxPrice, the min was set to 0.00

for the query request parameter minPrice, the min was set to 0.00

added the new optional query request parameter artist

added the new optional query request parameter page

added the new optional query request parameter query

for the query request parameter maxPrice, the type was generalized from integer to number

for the query request parameter minPrice, the type was generalized from integer to number

added the optional property hasMore to the response with the 200 status

added the optional property items/items/artistCountry to the response with the 200 status

added the optional property items/items/artistUrl to the response with the 200 status

added the optional property limit to the response with the 200 status

added the optional property nextPage to the response with the 200 status

added the optional property note to the response with the 200 status

added the optional property page to the response with the 200 status

added the optional property totalPages to the response with the 200 status