Add OpenAI PDF processing project structure

DETAILS

Created the project file `OpenAI-FileProcessing-Pdf-01.csproj` with necessary SDK and properties for OpenAI integration. Updated `Program.cs` to load OpenAI API key, create a chat kernel, and process PDF files for contract information extraction. Added two PDF files, `real-state-contract-1.pdf` and `real-state-contract-2.pdf`, containing real estate contracts for processing.

Add OpenAI-FileProcessing-Pdf-01 project to solution

DETAILS

The solution file `CoreGenerativeAITechniques.sln` has been modified to include a new project named "OpenAI-FileProcessing-Pdf-01" with its corresponding project file `OpenAI-FileProcessing-Pdf-01.csproj`. The project is identified by the unique GUID `{4266A1B3-94FF-482E-A292-F1A36E0777D9}`. Additionally, the project has been added to the nested projects section of the solution, linking it to an existing project identified by `{E224737A-CFFB-4292-8F73-A543A0387938}`. Other sections of the solution file, such as the solution configurations and properties, remain unchanged.

Author: elbruno

03-CoreGenerativeAITechniques/src/CoreGenerativeAITechniques.sln

@@ -89,7 +89,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "12 Files", "12 Files", "{E2
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "OpenAI-FileProcessing-Pdf-01", "OpenAI-FileProcessing-Pdf-01\OpenAI-FileProcessing-Pdf-01.csproj", "{4266A1B3-94FF-482E-A292-F1A36E0777D9}"
 EndProject
-
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -472,7 +471,6 @@ Global
 		{4266A1B3-94FF-482E-A292-F1A36E0777D9}.Release|x64.Build.0 = Release|Any CPU
 		{4266A1B3-94FF-482E-A292-F1A36E0777D9}.Release|x86.ActiveCfg = Release|Any CPU
 		{4266A1B3-94FF-482E-A292-F1A36E0777D9}.Release|x86.Build.0 = Release|Any CPU
-
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -508,6 +506,7 @@ Global
 		{5D39F3CE-CA22-4DD2-BED0-DEA510245AE9} = {F5798C6F-98D6-4411-A5F0-F928CBA64095}
 		{EDBD038C-E163-424C-9738-3710FFF6127C} = {2E7A2F07-C66E-4EC8-AC6A-F1343B2F7478}
 		{20C3DA44-FAF4-41FB-9B3D-1782A250A0B8} = {A02293A0-BFF3-4708-A110-30944AD39A69}
+		{4266A1B3-94FF-482E-A292-F1A36E0777D9} = {E224737A-CFFB-4292-8F73-A543A0387938}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {961EEBAB-4149-4AA4-BEE7-9DAAE4C94133}